diff --git a/web/src/views/Conversation/index.tsx b/web/src/views/Conversation/index.tsx
index d791bf2d..d385e1f0 100644
--- a/web/src/views/Conversation/index.tsx
+++ b/web/src/views/Conversation/index.tsx
@@ -181,10 +181,15 @@ const Conversation: FC = () => {
             currentConversationId = newId
             break
           case 'message':
-            const { content } = item.data as { content: string  }
-            updateAssistantMessage(content)
+            const { content, chunk, conversation_id: curId } = item.data as { content: string; chunk: string; conversation_id: string;  }
+            updateAssistantMessage(content ?? chunk)
+
+            if (curId) {
+              currentConversationId = curId;
+            }
             break
           case 'end':
+          case 'workflow_end':
             setLoading(false)
             if (currentConversationId && currentConversationId !== conversation_id) {
               setConversationId(currentConversationId)
diff --git a/web/src/views/Workflow/components/AddChatVariable/ChatVariableModal.tsx b/web/src/views/Workflow/components/AddChatVariable/ChatVariableModal.tsx
index aaaa2ab5..52394ea1 100644
--- a/web/src/views/Workflow/components/AddChatVariable/ChatVariableModal.tsx
+++ b/web/src/views/Workflow/components/AddChatVariable/ChatVariableModal.tsx
@@ -103,7 +103,11 @@ const ChatVariableModal = forwardRef<ChatVariableModalRef, ChatVariableModalProp
           label={t('workflow.config.parameter-extractor.default')}
         >
           {type === 'number'
-            ? <InputNumber placeholder={t('common.enter')} style={{ width: '100%' }} />
+            ? <InputNumber 
+              placeholder={t('common.enter')} 
+              style={{ width: '100%' }}
+              onChange={(value) => form.setFieldValue('defaultValue', value)}
+            />
             : type === 'boolean'
             ? <Select
               placeholder={t('common.pleaseSelect')}
diff --git a/web/src/views/Workflow/components/Chat/Chat.tsx b/web/src/views/Workflow/components/Chat/Chat.tsx
index 0673389e..9b1d3254 100644
--- a/web/src/views/Workflow/components/Chat/Chat.tsx
+++ b/web/src/views/Workflow/components/Chat/Chat.tsx
@@ -54,6 +54,7 @@ const Chat = forwardRef<ChatRef, { appId: string; graphRef: GraphRef }>(({ appId
   const handleClose = () => {
     setOpen(false)
     setChatList([])
+    setVariables([])
   }
   const handleEditVariables = () => {
     variableConfigModalRef.current?.handleOpen(variables)
diff --git a/web/src/views/Workflow/components/Chat/VariableConfigModal.tsx b/web/src/views/Workflow/components/Chat/VariableConfigModal.tsx
index d262048e..339a80cd 100644
--- a/web/src/views/Workflow/components/Chat/VariableConfigModal.tsx
+++ b/web/src/views/Workflow/components/Chat/VariableConfigModal.tsx
@@ -80,7 +80,7 @@ const VariableConfigModal = forwardRef<VariableConfigModalRef, VariableEditModal
                       field.type === 'string' && <Input placeholder={t('common.pleaseEnter')} />
                     }
                     {
-                      field.type === 'number' && <InputNumber placeholder={t('common.pleaseEnter')} style={{ width: '100%' }} />
+                      field.type === 'number' && <InputNumber placeholder={t('common.pleaseEnter')} style={{ width: '100%' }} onChange={(value) => form.setFieldValue(['variables', name, 'value'], value)} />
                     }
                     {
                       field.type === 'boolean' && <Checkbox>{`${field.name}·${field.description}`}</Checkbox>
diff --git a/web/src/views/Workflow/components/Nodes/AddNode.tsx b/web/src/views/Workflow/components/Nodes/AddNode.tsx
index c40600d6..b9e602d4 100644
--- a/web/src/views/Workflow/components/Nodes/AddNode.tsx
+++ b/web/src/views/Workflow/components/Nodes/AddNode.tsx
@@ -46,7 +46,8 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
       graph.addEdge({
         source: { cell: edge.getSourceCellId(), port: edge.getSourcePortId() },
         target: { cell: newNode.id, port: newNode.getPorts().find((port: any) => port.group === 'left')?.id || 'left' },
-        attrs: edge.getAttrs()
+        attrs: edge.getAttrs(),
+        zIndex: 3
       });
     });
 
diff --git a/web/src/views/Workflow/components/PortClickHandler.tsx b/web/src/views/Workflow/components/PortClickHandler.tsx
index 9d9225e8..9b83215a 100644
--- a/web/src/views/Workflow/components/PortClickHandler.tsx
+++ b/web/src/views/Workflow/components/PortClickHandler.tsx
@@ -85,6 +85,7 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
             },
           },
         },
+        zIndex: 0
       });
       
       // 循环节点内子节点通过连接桩添加时，调整循环节点大小
diff --git a/web/src/views/Workflow/components/Properties/AssignmentList/index.tsx b/web/src/views/Workflow/components/Properties/AssignmentList/index.tsx
index 494e4342..2ee4f51e 100644
--- a/web/src/views/Workflow/components/Properties/AssignmentList/index.tsx
+++ b/web/src/views/Workflow/components/Properties/AssignmentList/index.tsx
@@ -60,7 +60,7 @@ const AssignmentList: FC<AssignmentListProps> = ({
                     >
                       <VariableSelect
                         placeholder={t('common.pleaseSelect')}
-                        options={options.filter(vo => vo.nodeData.type === 'loop' || vo.value.includes('conv.'))}
+                        options={options.filter(vo => vo.nodeData.type === 'loop' || vo.value.includes('conv.') || (vo.nodeData.type === 'iteration' && (vo.label === 'item' || vo.label === 'index')))}
                         popupMatchSelectWidth={false}
                         onChange={() => {
                           form.setFieldValue([parentName, name, 'operation'], undefined);
diff --git a/web/src/views/Workflow/components/Properties/CaseList/index.tsx b/web/src/views/Workflow/components/Properties/CaseList/index.tsx
index 96850911..0126b76d 100644
--- a/web/src/views/Workflow/components/Properties/CaseList/index.tsx
+++ b/web/src/views/Workflow/components/Properties/CaseList/index.tsx
@@ -40,8 +40,6 @@ const operatorsObj: { [key: string]: SelectProps['options'] } = {
   boolean: [
     { value: 'eq', label: 'workflow.config.if-else.boolean.eq' },
     { value: 'ne', label: 'workflow.config.if-else.boolean.ne' },
-    { value: 'empty', label: 'workflow.config.if-else.empty' },
-    { value: 'not_empty', label: 'workflow.config.if-else.not_empty' },
   ]
 }
 
@@ -85,11 +83,14 @@ const CaseList: FC<CaseListProps> = ({
 
     selectedNode.prop('size', { width: 240, height: newHeight })
     
+    // 计算端口间距
+    const dy = totalPorts;
+    
     // 添加 IF 端口
     selectedNode.addPort({
       id: 'CASE1',
       group: 'right',
-      args: { dy: 24 },
+      // args: { dy },
       attrs: { text: { text: 'IF', fontSize: 12, fill: '#5B6167' }}
     });
     
@@ -98,6 +99,7 @@ const CaseList: FC<CaseListProps> = ({
       selectedNode.addPort({
         id: `CASE${i + 1}`,
         group: 'right',
+        // args: { dy },
         attrs: { text: { text: 'ELIF', fontSize: 12, fill: '#5B6167' }}
       });
     }
@@ -106,11 +108,22 @@ const CaseList: FC<CaseListProps> = ({
     selectedNode.addPort({
       id: `CASE${caseCount + 1}`,
       group: 'right',
+      // args: { dy },
       attrs: { text: { text: 'ELSE', fontSize: 12, fill: '#5B6167' }}
     });
     
     // 恢复仍然存在的端口连线
     setTimeout(() => {
+      // 计算删除前的总端口数来确定原ELSE端口编号
+      const originalCaseCount = removedCaseIndex !== undefined ? caseCount + 1 : caseCount;
+      const originalElsePortNumber = originalCaseCount + 1;
+      
+      // 检查ELSE端口是否有连线
+      const elseHasConnection = edgeConnections.some(({ sourcePortId, isIncoming }: any) => {
+        const caseNumber = parseInt(sourcePortId.match(/CASE(\d+)/)?.[1] || '0');
+        return !isIncoming && caseNumber === originalElsePortNumber;
+      });
+      
       edgeConnections.forEach(({ edge, sourcePortId, targetCellId, targetPortId, sourceCellId, isIncoming }: any) => {
         // 如果是进入连线（左侧端口），直接恢复
         if (isIncoming) {
@@ -138,7 +151,7 @@ const CaseList: FC<CaseListProps> = ({
         // 处理右侧端口连线
         const originalCaseNumber = parseInt(sourcePortId.match(/CASE(\d+)/)?.[1] || '0');
         
-        // 如果是被删除的端口，不重新创建连线
+        // 如果是被删除的端口，只删除该端口的连线
         if (removedCaseIndex !== undefined && originalCaseNumber === removedCaseIndex + 1) {
           graphRef.current?.removeCell(edge);
           return;
@@ -146,15 +159,8 @@ const CaseList: FC<CaseListProps> = ({
         
         let newPortId = sourcePortId;
         
-        // 如果是原来的ELSE端口，重新映射到新的ELSE端口
-        const maxOriginalCaseNumber = Math.max(...edgeConnections
-          .filter(({ isIncoming }: any) => !isIncoming)
-          .map(({ sourcePortId }: any) => {
-            const match = sourcePortId.match(/CASE(\d+)/);
-            return match ? parseInt(match[1]) : 0;
-          }));
-        
-        if (originalCaseNumber === maxOriginalCaseNumber) {
+        // 如果是原来的ELSE端口且有连线，重新映射到新的ELSE端口
+        if (originalCaseNumber === originalElsePortNumber && elseHasConnection) {
           newPortId = `CASE${caseCount + 1}`; // 新的ELSE端口
         } else if (removedCaseIndex !== undefined && originalCaseNumber > removedCaseIndex + 1) {
           // 如果是被删除端口之后的端口，编号向前移动
diff --git a/web/src/views/Workflow/components/Properties/ConditionList/index.tsx b/web/src/views/Workflow/components/Properties/ConditionList/index.tsx
index d809fec5..dfdda990 100644
--- a/web/src/views/Workflow/components/Properties/ConditionList/index.tsx
+++ b/web/src/views/Workflow/components/Properties/ConditionList/index.tsx
@@ -53,6 +53,7 @@ const operatorsObj: { [key: string]: SelectProps['options'] } = {
 const ConditionList: FC<CaseListProps> = ({
   options,
   parentName,
+  selectedNode,
 }) => {
   const { t } = useTranslation();
   const form = Form.useFormInstance();
@@ -114,7 +115,12 @@ const ConditionList: FC<CaseListProps> = ({
                       <Col span={14}>
                         <Form.Item name={[field.name, 'left']} noStyle>
                           <VariableSelect
-                            options={options.filter(vo => vo.value.includes('sys.') || vo.value.includes('conv.') || vo.nodeData.type === 'loop')}
+                            options={options.filter(vo => 
+                              vo.value.includes('sys.') || 
+                              vo.value.includes('conv.') || 
+                              vo.nodeData.type === 'loop' ||
+                              (vo.nodeData.cycle && vo.nodeData.cycle === selectedNode?.id)
+                            )}
                             size="small"
                             allowClear={false}
                             popupMatchSelectWidth={false}
diff --git a/web/src/views/Workflow/components/Properties/index.tsx b/web/src/views/Workflow/components/Properties/index.tsx
index 2903b2c9..a555b4fe 100644
--- a/web/src/views/Workflow/components/Properties/index.tsx
+++ b/web/src/views/Workflow/components/Properties/index.tsx
@@ -566,42 +566,6 @@ const Properties: FC<PropertiesProps> = ({
               nodeData: nodeData,
             });
           }
-          
-          // Check if connected via ERROR connection point
-          const errorEdges = edges.filter(edge => 
-            edge.getTargetCellId() === selectedNode.id && 
-            edge.getSourceCellId() === nodeId &&
-            edge.getSourcePortId() === 'ERROR'
-          );
-          
-          if (errorEdges.length > 0) {
-            const errorMessageKey = `${dataNodeId}_error_message`;
-            const errorTypeKey = `${dataNodeId}_error_type`;
-            
-            if (!addedKeys.has(errorMessageKey)) {
-              addedKeys.add(errorMessageKey);
-              variableList.push({
-                key: errorMessageKey,
-                label: 'error_message',
-                type: 'variable',
-                dataType: 'string',
-                value: `${dataNodeId}.error_message`,
-                nodeData: nodeData,
-              });
-            }
-            
-            if (!addedKeys.has(errorTypeKey)) {
-              addedKeys.add(errorTypeKey);
-              variableList.push({
-                key: errorTypeKey,
-                label: 'error_type',
-                type: 'variable',
-                dataType: 'string',
-                value: `${dataNodeId}.error_type`,
-                nodeData: nodeData,
-              });
-            }
-          }
           break
         case 'jinja-render':
           const jinjaOutputKey = `${dataNodeId}_output`;
@@ -793,54 +757,6 @@ const Properties: FC<PropertiesProps> = ({
           }
         }
       }
-
-      // Check if parent loop/iteration is connected to http-request via ERROR connection
-      if (parentData.type === 'loop' || parentData.type === 'iteration') {
-        const parentPreviousNodeIds = getAllPreviousNodes(parentLoopNode.id);
-        parentPreviousNodeIds.forEach(prevNodeId => {
-          const prevNode = nodes.find(n => n.id === prevNodeId);
-          if (!prevNode) return;
-
-          const prevNodeData = prevNode.getData();
-          if (prevNodeData.type === 'http-request') {
-            // Check if connected via ERROR connection point
-            const errorEdges = edges.filter(edge => {
-              return edge.getTargetCellId() === parentLoopNode.id &&
-                edge.getSourceCellId() === prevNodeId &&
-                edge.getSourcePortId() === 'ERROR'
-            });
-
-            if (errorEdges.length > 0) {
-              const errorMessageKey = `${prevNodeData.id}_error_message`;
-              const errorTypeKey = `${prevNodeData.id}_error_type`;
-
-              if (!addedKeys.has(errorMessageKey)) {
-                addedKeys.add(errorMessageKey);
-                variableList.push({
-                  key: errorMessageKey,
-                  label: 'error_message',
-                  type: 'variable',
-                  dataType: 'string',
-                  value: `${prevNodeData.id}.error_message`,
-                  nodeData: prevNodeData,
-                });
-              }
-
-              if (!addedKeys.has(errorTypeKey)) {
-                addedKeys.add(errorTypeKey);
-                variableList.push({
-                  key: errorTypeKey,
-                  label: 'error_type',
-                  type: 'variable',
-                  dataType: 'string',
-                  value: `${prevNodeData.id}.error_type`,
-                  nodeData: prevNodeData,
-                });
-              }
-            }
-          }
-        });
-      }
     }
 
     return variableList;
@@ -999,12 +915,12 @@ const Properties: FC<PropertiesProps> = ({
       return filteredList;
     }
     if (nodeType === 'knowledge-retrieval' || nodeType === 'parameter-extractor' && key !== 'prompt' || nodeType === 'memory-read' || nodeType === 'memory-write' || nodeType === 'question-classifier') {
-      let filteredList = variableList.filter(variable => variable.dataType === 'string');
-      return addParentIterationVars(filteredList);
+      let filteredList = addParentIterationVars(variableList).filter(variable => variable.dataType === 'string');
+      return filteredList;
     }
     if (nodeType === 'parameter-extractor' && key === 'prompt') {
-      let filteredList = variableList.filter(variable => variable.dataType === 'string' || variable.dataType === 'number');
-      return addParentIterationVars(filteredList);
+      let filteredList = addParentIterationVars(variableList).filter(variable => variable.dataType === 'string' || variable.dataType === 'number');
+      return filteredList;
     }
     if (nodeType === 'iteration' && key === 'output') {
       return variableList.filter(variable => variable.value.includes('sys.'));
@@ -1013,8 +929,71 @@ const Properties: FC<PropertiesProps> = ({
       return variableList.filter(variable => variable.dataType.includes('array'));
     }
     if (nodeType === 'loop' && key === 'condition') {
-      let filteredList = variableList.filter(variable => variable.nodeData.type !== 'loop');
-      return addParentIterationVars(filteredList);
+      let filteredList = addParentIterationVars(variableList).filter(variable => variable.nodeData.type !== 'loop');
+      
+      // Add child node output variables for loop nodes
+      if (selectedNode) {
+        const graph = graphRef.current;
+        if (graph) {
+          const nodes = graph.getNodes();
+          const childNodes = nodes.filter(node => {
+            const nodeData = node.getData();
+            return nodeData?.cycle === selectedNode.id;
+          });
+          
+          // Add output variables from child nodes
+          childNodes.forEach(childNode => {
+            const childData = childNode.getData();
+            const childNodeId = childData.id;
+            
+            // Add child node output variables based on their type
+            switch(childData.type) {
+              case 'llm':
+              case 'jinja-render':
+              case 'tool':
+                const outputKey = `${childNodeId}_output`;
+                const existingOutput = filteredList.find(v => v.key === outputKey);
+                if (!existingOutput) {
+                  filteredList.push({
+                    key: outputKey,
+                    label: 'output',
+                    type: 'variable',
+                    dataType: 'string',
+                    value: `${childNodeId}.output`,
+                    nodeData: childData,
+                  });
+                }
+                break;
+              case 'http-request':
+                const bodyKey = `${childNodeId}_body`;
+                const statusKey = `${childNodeId}_status_code`;
+                if (!filteredList.find(v => v.key === bodyKey)) {
+                  filteredList.push({
+                    key: bodyKey,
+                    label: 'body',
+                    type: 'variable',
+                    dataType: 'string',
+                    value: `${childNodeId}.body`,
+                    nodeData: childData,
+                  });
+                }
+                if (!filteredList.find(v => v.key === statusKey)) {
+                  filteredList.push({
+                    key: statusKey,
+                    label: 'status_code',
+                    type: 'variable',
+                    dataType: 'number',
+                    value: `${childNodeId}.status_code`,
+                    nodeData: childData,
+                  });
+                }
+                break;
+            }
+          });
+        }
+      }
+      
+      return filteredList;
     }
     
     // For all other node types, add parent iteration variables if applicable
@@ -1025,7 +1004,7 @@ const Properties: FC<PropertiesProps> = ({
   // const defaultVariableList = calculateVariableList(selectedNode as Node, graphRef, workflowConfig )
 
   console.log('values', values)
-  // console.log('variableList', variableList, defaultVariableList)
+  console.log('variableList', variableList)
 
   return (
     <div className="rb:w-75 rb:fixed rb:right-0 rb:top-16 rb:bottom-0 rb:p-3">