diff --git a/src/core/dispatch.rs b/src/core/dispatch.rs
index 5d5823c..b37a43b 100644
--- a/src/core/dispatch.rs
+++ b/src/core/dispatch.rs
@@ -1,4 +1,5 @@
 use crate::core::message::{Destination, Envelope, Message, PlayerCommand, WifiCommand};
+use crate::core::plugin_ids;
 
 /// 命令解析结果
 pub struct DispatchResult {
@@ -137,7 +138,7 @@ fn ok_video(from: &str, message: Message) -> Result<DispatchResult, String> {
     Ok(DispatchResult {
         envelope: Envelope {
             from: from.to_string(),
-            to: Destination::Plugin("video".to_string()),
+            to: Destination::Plugin(plugin_ids::VIDEO.to_string()),
             message,
         },
     })
@@ -147,7 +148,7 @@ fn ok_wifi(from: &str, message: Message) -> Result<DispatchResult, String> {
     Ok(DispatchResult {
         envelope: Envelope {
             from: from.to_string(),
-            to: Destination::Plugin("wifi".to_string()),
+            to: Destination::Plugin(plugin_ids::WIFI.to_string()),
             message,
         },
     })
diff --git a/src/core/mod.rs b/src/core/mod.rs
index a949977..698ac7d 100644
--- a/src/core/mod.rs
+++ b/src/core/mod.rs
@@ -9,5 +9,15 @@ pub mod plugin_repo;
 pub mod service_manager;
 pub mod version_manager;
 
+/// 内置插件 ID 常量
+pub mod plugin_ids {
+    pub const VIDEO: &str = "video";
+    pub const HTTP: &str = "http";
+    pub const WIFI: &str = "wifi";
+    pub const BLE: &str = "ble";
+    pub const DEVICE: &str = "device";
+    pub const SCREEN: &str = "screen";
+}
+
 #[cfg(test)]
 mod tests;
diff --git a/src/plugins/http/mod.rs b/src/plugins/http/mod.rs
index 374bee7..9aabf80 100644
--- a/src/plugins/http/mod.rs
+++ b/src/plugins/http/mod.rs
@@ -244,7 +244,7 @@ impl Plugin for HttpPlugin {
     }
 
     fn dependencies(&self) -> Vec<String> {
-        vec!["video".to_string()]
+        vec![crate::core::plugin_ids::VIDEO.to_string()]
     }
 
     fn init(&mut self, ctx: PluginContext) -> Result<()> {
diff --git a/src/plugins/screen/mod.rs b/src/plugins/screen/mod.rs
index 3b9a14d..8a7d9e6 100644
--- a/src/plugins/screen/mod.rs
+++ b/src/plugins/screen/mod.rs
@@ -9,6 +9,7 @@
 use crate::core::{
     message::{Destination, DeviceCommand, Envelope, Message},
     plugin::*,
+    plugin_ids,
 };
 use anyhow::Result;
 
@@ -25,7 +26,7 @@ impl ScreenPlugin {
         if let Some(ctx) = &self.ctx {
             let envelope = Envelope {
                 from: self.id().to_string(),
-                to: Destination::Plugin("device".to_string()),
+                to: Destination::Plugin(plugin_ids::DEVICE.to_string()),
                 message: Message::DeviceCommand(DeviceCommand::SetSleepInhibit(true)),
             };
             let _ = ctx.tx.send(envelope);
@@ -36,7 +37,7 @@ impl ScreenPlugin {
         if let Some(ctx) = &self.ctx {
             let envelope = Envelope {
                 from: self.id().to_string(),
-                to: Destination::Plugin("device".to_string()),
+                to: Destination::Plugin(plugin_ids::DEVICE.to_string()),
                 message: Message::DeviceCommand(DeviceCommand::SetSleepInhibit(false)),
             };
             let _ = ctx.tx.send(envelope);
@@ -47,7 +48,7 @@ impl ScreenPlugin {
         if let Some(ctx) = &self.ctx {
             let envelope = Envelope {
                 from: self.id().to_string(),
-                to: Destination::Plugin("device".to_string()),
+                to: Destination::Plugin(plugin_ids::DEVICE.to_string()),
                 message: Message::DeviceCommand(DeviceCommand::SetCursorVisible(!hidden)),
             };
             let _ = ctx.tx.send(envelope);
@@ -76,7 +77,7 @@ impl Plugin for ScreenPlugin {
     }
 
     fn dependencies(&self) -> Vec<String> {
-        vec!["device".to_string()]
+        vec![plugin_ids::DEVICE.to_string()]
     }
 
     fn init(&mut self, ctx: PluginContext) -> Result<()> {
diff --git a/src/plugins/video/mod.rs b/src/plugins/video/mod.rs
index 6e4e906..9c6f032 100644
--- a/src/plugins/video/mod.rs
+++ b/src/plugins/video/mod.rs
@@ -7,6 +7,7 @@ pub mod state_machine;
 
 use crate::core::message::{Destination, Envelope, Message, PlayerCommand, PlayerStatusData};
 use crate::core::plugin::{Platform, Plugin, PluginContext, PluginInfo};
+use crate::core::plugin_ids;
 use anyhow::{anyhow, Context, Result};
 use opencv::highgui;
 use processor::VideoProcessor;
@@ -151,7 +152,7 @@ impl Plugin for VideoPlugin {
                         if let Some(ctx) = &self.ctx {
                             let _ = ctx.tx.send(Envelope {
                                 from: self.id().to_string(),
-                                to: Destination::Plugin("screen".to_string()),
+                                to: Destination::Plugin(plugin_ids::SCREEN.to_string()),
                                 message: Message::ScreenLockRequest(true),
                             });
                         }
@@ -162,7 +163,7 @@ impl Plugin for VideoPlugin {
                         if let Some(ctx) = &self.ctx {
                             let _ = ctx.tx.send(Envelope {
                                 from: self.id().to_string(),
-                                to: Destination::Plugin("screen".to_string()),
+                                to: Destination::Plugin(plugin_ids::SCREEN.to_string()),
                                 message: Message::ScreenLockRequest(false),
                             });
                         }