diff --git a/web/app/components/workflow/hooks/use-inspect-vars-crud.ts b/web/app/components/workflow/hooks/use-inspect-vars-crud.ts
index ef3224028a..b29bd5ff85 100644
--- a/web/app/components/workflow/hooks/use-inspect-vars-crud.ts
+++ b/web/app/components/workflow/hooks/use-inspect-vars-crud.ts
@@ -12,6 +12,7 @@ import {
   useInvalidateConversationVarValues,
   useInvalidateSysVarValues,
   useLastRun,
+  useResetConversationVar,
   useSysVarValues,
 } from '@/service/use-workflow'
 import { useCallback, useEffect, useState } from 'react'
@@ -37,6 +38,7 @@ const useInspectVarsCrud = () => {
 
   const { data: conversationVars } = useConversationVarValues(appId)
   const invalidateConversationVarValues = useInvalidateConversationVarValues(appId)
+  const { mutateAsync: doResetConversationVar } = useResetConversationVar(appId)
   const { data: systemVars } = useSysVarValues(appId)
   const invalidateSysVarValues = useInvalidateSysVarValues(appId)
 
@@ -143,6 +145,11 @@ const useInspectVarsCrud = () => {
     }
   }
 
+  const resetConversationVar = async (varId: string) => {
+    await doResetConversationVar(varId)
+    invalidateConversationVarValues()
+  }
+
   const deleteNodeInspectorVars = async (nodeId: string) => {
     if (hasNodeInspectVars(nodeId)) {
       await doDeleteNodeInspectorVars(nodeId)
@@ -229,6 +236,7 @@ const useInspectVarsCrud = () => {
     isInspectVarEdited,
     resetToLastRunVar,
     invalidateSysVarValues,
+    resetConversationVar,
     invalidateConversationVarValues,
   }
 }
diff --git a/web/service/use-workflow.ts b/web/service/use-workflow.ts
index 4d76537da8..b1bba9531f 100644
--- a/web/service/use-workflow.ts
+++ b/web/service/use-workflow.ts
@@ -1,4 +1,4 @@
-import { del, get, patch, post } from './base'
+import { del, get, patch, post, put } from './base'
 import { useInfiniteQuery, useMutation, useQuery } from '@tanstack/react-query'
 import type {
   FetchWorkflowDraftPageParams,
@@ -127,6 +127,15 @@ export const useInvalidateConversationVarValues = (appId: string) => {
   return useInvalid([...useConversationVarValuesKey, appId])
 }
 
+export const useResetConversationVar = (appId: string) => {
+  return useMutation({
+    mutationKey: [NAME_SPACE, 'reset conversation var', appId],
+    mutationFn: async (varId: string) => {
+      return put(`apps/${appId}/workflows/draft/variables/${varId}/reset`)
+    },
+  })
+}
+
 export const useSysVarValuesKey = [NAME_SPACE, 'sys-variable']
 export const useSysVarValues = (appId: string) => {
   return useQuery({