diff --git a/web/app/components/workflow/nodes/human-input/components/delivery-method/method-item.tsx b/web/app/components/workflow/nodes/human-input/components/delivery-method/method-item.tsx
index 1e7656d986..8935176a55 100644
--- a/web/app/components/workflow/nodes/human-input/components/delivery-method/method-item.tsx
+++ b/web/app/components/workflow/nodes/human-input/components/delivery-method/method-item.tsx
@@ -70,15 +70,30 @@ const DeliveryMethodItem: FC<DeliveryMethodItemProps> = ({
     })
   }
 
+  const isEmailConfigComplete = useMemo(() => {
+    if (method.type !== DeliveryMethodType.Email || !method.config)
+      return false
+
+    const config = method.config as EmailConfig
+    const hasSubject = !!config.subject
+    const hasBody = !!config.body
+    const hasRecipients = config.recipients?.whole_workspace || (config.recipients?.items?.length > 0)
+
+    return hasSubject && hasBody && hasRecipients
+  }, [method.type, method.config])
+
   const emailSenderTooltipContent = useMemo(() => {
     if (method.type !== DeliveryMethodType.Email) {
       return ''
     }
+    if (!isEmailConfigComplete) {
+      return t(`${i18nPrefix}.deliveryMethod.emailSender.configIncomplete`, { ns: 'workflow' })
+    }
     if (method.config?.debug_mode) {
       return t(`${i18nPrefix}.deliveryMethod.emailSender.testSendTipInDebugMode`, { ns: 'workflow', email })
     }
     return t(`${i18nPrefix}.deliveryMethod.emailSender.testSendTip`, { ns: 'workflow' })
-  }, [method.type, method.config?.debug_mode, t, email])
+  }, [method.type, method.config?.debug_mode, isEmailConfigComplete, t, email])
 
   const jumpToEmailConfigModal = useCallback(() => {
     setShowTestEmailModal(false)
@@ -119,7 +134,13 @@ const DeliveryMethodItem: FC<DeliveryMethodItemProps> = ({
                     asChild={false}
                     needsDelay={false}
                   >
-                    <ActionButton onClick={() => setShowTestEmailModal(true)}>
+                    <ActionButton
+                      disabled={!isEmailConfigComplete}
+                      onClick={() => {
+                        if (isEmailConfigComplete)
+                          setShowTestEmailModal(true)
+                      }}
+                    >
                       <RiSendPlane2Line className="h-4 w-4" />
                     </ActionButton>
                   </Tooltip>
diff --git a/web/i18n/en-US/workflow.json b/web/i18n/en-US/workflow.json
index 4d9f5adbac..2834e70267 100644
--- a/web/i18n/en-US/workflow.json
+++ b/web/i18n/en-US/workflow.json
@@ -525,6 +525,7 @@
   "nodes.humanInput.deliveryMethod.emailConfigure.subject": "Subject",
   "nodes.humanInput.deliveryMethod.emailConfigure.subjectPlaceholder": "Enter email subject",
   "nodes.humanInput.deliveryMethod.emailConfigure.title": "Email Configuration",
+  "nodes.humanInput.deliveryMethod.emailSender.configIncomplete": "Please complete email configuration first (subject, body, and recipients)",
   "nodes.humanInput.deliveryMethod.emailSender.debugDone": "A test email has been sent to <email>{{email}}</email>. Please check your inbox.",
   "nodes.humanInput.deliveryMethod.emailSender.debugModeTip": "Debug mode is enabled.",
   "nodes.humanInput.deliveryMethod.emailSender.debugModeTip2": "Email will be sent to <email>{{email}}</email>.",
diff --git a/web/i18n/zh-Hans/workflow.json b/web/i18n/zh-Hans/workflow.json
index acda7db2fc..051886253a 100644
--- a/web/i18n/zh-Hans/workflow.json
+++ b/web/i18n/zh-Hans/workflow.json
@@ -525,6 +525,7 @@
   "nodes.humanInput.deliveryMethod.emailConfigure.subject": "邮件主题",
   "nodes.humanInput.deliveryMethod.emailConfigure.subjectPlaceholder": "输入邮件主题",
   "nodes.humanInput.deliveryMethod.emailConfigure.title": "电子邮件配置",
+  "nodes.humanInput.deliveryMethod.emailSender.configIncomplete": "请先完成邮件配置（主题、正文和收件人）",
   "nodes.humanInput.deliveryMethod.emailSender.debugDone": "测试邮件已发送到 <email>{{email}}</email>。请检查您的收件箱。",
   "nodes.humanInput.deliveryMethod.emailSender.debugModeTip": "调试模式已启用。",
   "nodes.humanInput.deliveryMethod.emailSender.debugModeTip2": "邮件将发送到 <email>{{email}}</email>。",