diff --git a/web/app/components/workflow/nodes/_base/components/variable/var-reference-popup.tsx b/web/app/components/workflow/nodes/_base/components/variable/var-reference-popup.tsx
index 114d849d50..8ee9698745 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/var-reference-popup.tsx
+++ b/web/app/components/workflow/nodes/_base/components/variable/var-reference-popup.tsx
@@ -23,7 +23,9 @@ const VarReferencePopup: FC<Props> = ({
         searchBoxClassName='mt-1'
         vars={vars}
         onChange={onChange}
-        itemWidth={itemWidth} />
+        itemWidth={itemWidth}
+        isSupportFileVar
+      />
     </div >
   )
 }
diff --git a/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx b/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
index ab71c959d5..9c2cba6e41 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
+++ b/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
@@ -25,6 +25,7 @@ type ObjectChildrenProps = {
   onChange: (value: ValueSelector, item: Var) => void
   onHovering?: (value: boolean) => void
   itemWidth?: number
+  isSupportFileVar?: boolean
 }
 
 type ItemProps = {
@@ -35,6 +36,7 @@ type ItemProps = {
   onChange: (value: ValueSelector, item: Var) => void
   onHovering?: (value: boolean) => void
   itemWidth?: number
+  isSupportFileVar?: boolean
 }
 
 const Item: FC<ItemProps> = ({
@@ -45,6 +47,7 @@ const Item: FC<ItemProps> = ({
   onChange,
   onHovering,
   itemWidth,
+  isSupportFileVar,
 }) => {
   const isFile = itemData.type === VarType.file
   const isObj = ([VarType.object, VarType.file].includes(itemData.type) && itemData.children && itemData.children.length > 0)
@@ -79,6 +82,9 @@ const Item: FC<ItemProps> = ({
   }, [isHovering])
   const handleChosen = (e: React.MouseEvent) => {
     e.stopPropagation()
+    if (!isSupportFileVar && isFile)
+      return
+
     if (isSys || isEnv || isChatVar) { // system variable | environment variable | conversation variable
       onChange([...objPath, ...itemData.variable.split('.')], itemData)
     }
@@ -135,6 +141,7 @@ const Item: FC<ItemProps> = ({
             onChange={onChange}
             onHovering={setIsChildrenHovering}
             itemWidth={itemWidth}
+            isSupportFileVar={isSupportFileVar}
           />
         )}
         {isFile && (
@@ -147,6 +154,7 @@ const Item: FC<ItemProps> = ({
             onChange={onChange}
             onHovering={setIsChildrenHovering}
             itemWidth={itemWidth}
+            isSupportFileVar={isSupportFileVar}
           />
         )}
       </PortalToFollowElemContent>
@@ -162,6 +170,7 @@ const ObjectChildren: FC<ObjectChildrenProps> = ({
   onChange,
   onHovering,
   itemWidth,
+  isSupportFileVar,
 }) => {
   const currObjPath = objPath
   const itemRef = useRef(null)
@@ -206,6 +215,7 @@ const ObjectChildren: FC<ObjectChildrenProps> = ({
             itemData={v}
             onChange={onChange}
             onHovering={setIsChildrenHovering}
+            isSupportFileVar={isSupportFileVar}
           />
         ))
       }
@@ -217,6 +227,7 @@ type Props = {
   hideSearch?: boolean
   searchBoxClassName?: string
   vars: NodeOutPutVar[]
+  isSupportFileVar?: boolean
   onChange: (value: ValueSelector, item: Var) => void
   itemWidth?: number
   maxHeightClass?: string
@@ -225,6 +236,7 @@ const VarReferenceVars: FC<Props> = ({
   hideSearch,
   searchBoxClassName,
   vars,
+  isSupportFileVar,
   onChange,
   itemWidth,
   maxHeightClass,
@@ -299,6 +311,7 @@ const VarReferenceVars: FC<Props> = ({
                     itemData={v}
                     onChange={onChange}
                     itemWidth={itemWidth}
+                    isSupportFileVar={isSupportFileVar}
                   />
                 ))}
               </div>))
diff --git a/web/app/components/workflow/nodes/if-else/components/condition-add.tsx b/web/app/components/workflow/nodes/if-else/components/condition-add.tsx
index ec1851c30d..344e986305 100644
--- a/web/app/components/workflow/nodes/if-else/components/condition-add.tsx
+++ b/web/app/components/workflow/nodes/if-else/components/condition-add.tsx
@@ -64,6 +64,7 @@ const ConditionAdd = ({
         <div className='w-[296px] bg-components-panel-bg-blur rounded-lg border-[0.5px] border-components-panel-border shadow-lg'>
           <VarReferenceVars
             vars={variables}
+            isSupportFileVar
             onChange={handleSelectVariable}
           />
         </div>