diff --git a/ui/src/i18n/locales/en/nls.provider.json b/ui/src/i18n/locales/en/nls.provider.json
index bdc64ad8..a7b5c292 100644
--- a/ui/src/i18n/locales/en/nls.provider.json
+++ b/ui/src/i18n/locales/en/nls.provider.json
@@ -138,5 +138,5 @@
   "provider.category.website": "Website",
   "provider.category.other": "Other",
 
-  "provider.default_ca_provider.label": "Follow global settings"
+  "provider.default_ca_provider.label": "(Default) Follow global settings"
 }
diff --git a/ui/src/i18n/locales/en/nls.workflow.nodes.json b/ui/src/i18n/locales/en/nls.workflow.nodes.json
index b74487ec..af3a6796 100644
--- a/ui/src/i18n/locales/en/nls.workflow.nodes.json
+++ b/ui/src/i18n/locales/en/nls.workflow.nodes.json
@@ -55,8 +55,9 @@
   "workflow_node.apply.form.tencentcloud_eo_zone_id.placeholder": "Please enter Tencent Cloud EdgeOne zone ID",
   "workflow_node.apply.form.tencentcloud_eo_zone_id.tooltip": "For more information, see <a href=\"https://console.tencentcloud.com/edgeone\" target=\"_blank\">https://console.tencentcloud.com/edgeone</a>",
   "workflow_node.apply.form.advanced_config.label": "Advanced settings",
-  "workflow_node.apply.form.ca_provider.label": "Certificate authority",
-  "workflow_node.apply.form.ca_provider.placeholder": "Follow global settings",
+  "workflow_node.apply.form.ca_provider.label": "Certificate authority (Optional)",
+  "workflow_node.apply.form.ca_provider.placeholder": "Please select a certificate authority",
+  "workflow_node.apply.form.ca_provider.tooltip": "Used to issue SSL certificates.",
   "workflow_node.apply.form.ca_provider.button": "Configure",
   "workflow_node.apply.form.ca_provider_access.label": "Certificate authority authorization",
   "workflow_node.apply.form.ca_provider_access.placeholder": "Please select an authorization of the certificate authority",
diff --git a/ui/src/i18n/locales/zh/nls.provider.json b/ui/src/i18n/locales/zh/nls.provider.json
index 27a9dbbc..3d7c1e58 100644
--- a/ui/src/i18n/locales/zh/nls.provider.json
+++ b/ui/src/i18n/locales/zh/nls.provider.json
@@ -138,5 +138,5 @@
   "provider.category.website": "网站托管",
   "provider.category.other": "其他",
 
-  "provider.default_ca_provider.label": "跟随全局设置"
+  "provider.default_ca_provider.label": "（默认）不指定，跟随全局设置"
 }
diff --git a/ui/src/i18n/locales/zh/nls.workflow.nodes.json b/ui/src/i18n/locales/zh/nls.workflow.nodes.json
index 5fe45e4e..9f6d4a96 100644
--- a/ui/src/i18n/locales/zh/nls.workflow.nodes.json
+++ b/ui/src/i18n/locales/zh/nls.workflow.nodes.json
@@ -55,8 +55,8 @@
   "workflow_node.apply.form.tencentcloud_eo_zone_id.placeholder": "请输入腾讯云 EdgeOne 站点 ID",
   "workflow_node.apply.form.tencentcloud_eo_zone_id.tooltip": "这是什么？请参阅 <a href=\"https://console.cloud.tencent.com/edgeone\" target=\"_blank\">https://console.cloud.tencent.com/edgeone</a>",
   "workflow_node.apply.form.advanced_config.label": "高级设置",
-  "workflow_node.apply.form.ca_provider.label": "证书颁发机构",
-  "workflow_node.apply.form.ca_provider.placeholder": "跟随全局设置",
+  "workflow_node.apply.form.ca_provider.label": "证书颁发机构（可选）",
+  "workflow_node.apply.form.ca_provider.placeholder": "请选择证书颁发机构",
   "workflow_node.apply.form.ca_provider.button": "去配置",
   "workflow_node.apply.form.ca_provider_access.label": "证书颁发机构授权",
   "workflow_node.apply.form.ca_provider_access.placeholder": "请选择证书颁发机构授权",