diff --git a/web/app/components/workflow/nodes/if-else/components/condition-list/condition-item.tsx b/web/app/components/workflow/nodes/if-else/components/condition-list/condition-item.tsx
index ef94f7c82..775f232fd 100644
--- a/web/app/components/workflow/nodes/if-else/components/condition-list/condition-item.tsx
+++ b/web/app/components/workflow/nodes/if-else/components/condition-list/condition-item.tsx
@@ -37,6 +37,8 @@ import { VarType } from '@/app/components/workflow/types'
 import cn from '@/utils/classnames'
 import { SimpleSelect as Select } from '@/app/components/base/select'
 import { Variable02 } from '@/app/components/base/icons/src/vender/solid/development'
+import { getVarType } from '@/app/components/workflow/nodes/_base/components/variable/utils'
+import { useIsChatMode } from '@/app/components/workflow/hooks/use-workflow'
 const optionNameI18NPrefix = 'workflow.nodes.ifElse.optionName'
 
 type ConditionItemProps = {
@@ -82,7 +84,7 @@ const ConditionItem = ({
   filterVar,
 }: ConditionItemProps) => {
   const { t } = useTranslation()
-
+  const isChatMode = useIsChatMode()
   const [isHovered, setIsHovered] = useState(false)
   const [open, setOpen] = useState(false)
 
@@ -120,6 +122,7 @@ const ConditionItem = ({
   }, [condition, doUpdateCondition])
 
   const isSubVariable = condition.varType === VarType.arrayFile && [ComparisonOperator.contains, ComparisonOperator.notContains, ComparisonOperator.allOf].includes(condition.comparison_operator!)
+
   const fileAttr = useMemo(() => {
     if (file)
       return file
@@ -194,15 +197,21 @@ const ConditionItem = ({
   }, [caseId, condition, conditionId, isSubVariableKey, onRemoveCondition, onRemoveSubVariableCondition])
 
   const handleVarChange = useCallback((valueSelector: ValueSelector, varItem: Var) => {
+    const resolvedVarType = getVarType({
+      valueSelector,
+      availableNodes,
+      isChatMode,
+    })
+
     const newCondition = produce(condition, (draft) => {
       draft.variable_selector = valueSelector
-      draft.varType = varItem.type
+      draft.varType = resolvedVarType
       draft.value = ''
-      draft.comparison_operator = getOperators(varItem.type)[0]
+      draft.comparison_operator = getOperators(resolvedVarType)[0]
     })
     doUpdateCondition(newCondition)
     setOpen(false)
-  }, [condition, doUpdateCondition])
+  }, [condition, doUpdateCondition, availableNodes, isChatMode])
 
   return (
     <div className={cn('mb-1 flex last-of-type:mb-0', className)}>