diff --git a/web/app/components/workflow/nodes/if-else/default.ts b/web/app/components/workflow/nodes/if-else/default.ts
index 7a74ddbdf6..c0e44cb499 100644
--- a/web/app/components/workflow/nodes/if-else/default.ts
+++ b/web/app/components/workflow/nodes/if-else/default.ts
@@ -2,6 +2,8 @@ import { BlockEnum, type NodeDefault } from '../../types'
 import { type IfElseNodeType, LogicalOperator } from './types'
 import { ALL_CHAT_AVAILABLE_BLOCKS, ALL_COMPLETION_AVAILABLE_BLOCKS } from '@/app/components/workflow/constants'
 
+const i18nPrefix = 'workflow.errorMsg'
+
 const nodeDefault: NodeDefault<IfElseNodeType> = {
   defaultValue: {
     _targetBranches: [
@@ -27,15 +29,20 @@ const nodeDefault: NodeDefault<IfElseNodeType> = {
     const nodes = isChatMode ? ALL_CHAT_AVAILABLE_BLOCKS : ALL_COMPLETION_AVAILABLE_BLOCKS
     return nodes.filter(type => type !== BlockEnum.VariableAssigner)
   },
-  checkValid(payload: IfElseNodeType) {
-    let isValid = true
+  checkValid(payload: IfElseNodeType, t: any) {
     let errorMessages = ''
-    if (payload.type) {
-      isValid = true
-      errorMessages = ''
-    }
+    const { conditions } = payload
+    if (!conditions || conditions.length === 0)
+      errorMessages = t(`${i18nPrefix}.fieldRequired`, { field: 'IF' })
+
+    conditions.forEach((condition) => {
+      if (!errorMessages && (!condition.variable_selector || condition.variable_selector.length === 0))
+        errorMessages = t(`${i18nPrefix}.fieldRequired`, { field: t(`${i18nPrefix}.fields.variable`) })
+      if (!errorMessages && !condition.value)
+        errorMessages = t(`${i18nPrefix}.fieldRequired`, { field: t(`${i18nPrefix}.fields.variableValue`) })
+    })
     return {
-      isValid,
+      isValid: !errorMessages,
       errorMessage: errorMessages,
     }
   },