diff --git a/src-tauri/src/commands.rs b/src-tauri/src/commands.rs
index 4a6174f..88b6978 100644
--- a/src-tauri/src/commands.rs
+++ b/src-tauri/src/commands.rs
@@ -1,6 +1,12 @@
 use parking_lot::RwLock;
+use tauri::AppHandle;
 
-use crate::config::Config;
+use crate::{
+    config::Config,
+    errors::{CommandError, CommandResult},
+    extensions::AppHandleExt,
+    logger,
+};
 
 #[tauri::command]
 #[specta::specta]
@@ -14,3 +20,38 @@ pub fn greet(name: &str) -> String {
 pub fn get_config(config: tauri::State<RwLock<Config>>) -> Config {
     config.read().clone()
 }
+
+#[tauri::command(async)]
+#[specta::specta]
+#[allow(clippy::needless_pass_by_value)]
+pub fn save_config(app: AppHandle, config: Config) -> CommandResult<()> {
+    let config_state = app.get_config();
+
+    let enable_file_logger = config.enable_file_logger;
+    let enable_file_logger_changed = config_state
+        .read()
+        .enable_file_logger
+        .ne(&enable_file_logger);
+
+    {
+        // 包裹在大括号中，以便自动释放写锁
+        let mut config_state = config_state.write();
+        *config_state = config;
+        config_state
+            .save(&app)
+            .map_err(|err| CommandError::from("保存配置失败", err))?;
+        tracing::debug!("保存配置成功");
+    }
+
+    if enable_file_logger_changed {
+        if enable_file_logger {
+            logger::reload_file_logger()
+                .map_err(|err| CommandError::from("重新加载文件日志失败", err))?;
+        } else {
+            logger::disable_file_logger()
+                .map_err(|err| CommandError::from("禁用文件日志失败", err))?;
+        }
+    }
+
+    Ok(())
+}
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 24f32af..d6479e8 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -22,7 +22,11 @@ fn generate_context() -> tauri::Context<Wry> {
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     let builder = tauri_specta::Builder::<Wry>::new()
-        .commands(tauri_specta::collect_commands![greet, get_config])
+        .commands(tauri_specta::collect_commands![
+            greet,
+            get_config,
+            save_config,
+        ])
         .events(tauri_specta::collect_events![LogEvent]);
 
     #[cfg(debug_assertions)]
diff --git a/src/bindings.ts b/src/bindings.ts
index 96ce16a..6d4d1ae 100644
--- a/src/bindings.ts
+++ b/src/bindings.ts
@@ -10,6 +10,14 @@ async greet(name: string) : Promise<string> {
 },
 async getConfig() : Promise<Config> {
     return await TAURI_INVOKE("get_config");
+},
+async saveConfig(config: Config) : Promise<Result<null, CommandError>> {
+    try {
+    return { status: "ok", data: await TAURI_INVOKE("save_config", { config }) };
+} catch (e) {
+    if(e instanceof Error) throw e;
+    else return { status: "error", error: e  as any };
+}
 }
 }
 
@@ -28,6 +36,7 @@ logEvent: "log-event"
 
 /** user-defined types **/
 
+export type CommandError = { err_title: string; err_message: string }
 export type Config = { downloadDir: string; enableFileLogger: boolean }
 export type JsonValue = null | boolean | number | string | JsonValue[] | { [key in string]: JsonValue }
 export type LogEvent = { timestamp: string; level: LogLevel; fields: { [key in string]: JsonValue }; target: string; filename: string; line_number: number }