diff --git a/apps/desktop/src-tauri/src/presentation/commands/tolerant_json_commands.rs b/apps/desktop/src-tauri/src/presentation/commands/tolerant_json_commands.rs
index f4ffe36..95cb9fd 100644
--- a/apps/desktop/src-tauri/src/presentation/commands/tolerant_json_commands.rs
+++ b/apps/desktop/src-tauri/src/presentation/commands/tolerant_json_commands.rs
@@ -99,7 +99,9 @@ impl JsonParserState {
 
     /// 获取或创建解析器实例
     fn get_or_create_parser(&self, config: Option<ParserConfig>) -> Result<()> {
-        let mut parser_guard = self.parser.lock().unwrap();
+        let mut parser_guard = self.parser.lock().map_err(|_| {
+            anyhow::anyhow!("Failed to acquire parser lock")
+        })?;
 
         // 每次都创建新的解析器实例以确保使用正确的配置
         let parser = TolerantJsonParser::new(config)?;
@@ -132,7 +134,18 @@ pub async fn parse_json_tolerant(
     }
     
     // 执行解析
-    let mut parser_guard = state.parser.lock().unwrap();
+    let mut parser_guard = match state.parser.lock() {
+        Ok(guard) => guard,
+        Err(_) => {
+            error!("Failed to acquire parser lock, mutex is poisoned");
+            return Ok(ParseJsonResponse {
+                success: false,
+                data: None,
+                statistics: None,
+                error: Some("Parser lock is poisoned, please restart the application".to_string()),
+            });
+        }
+    };
     if let Some(ref mut parser) = *parser_guard {
         info!("Starting JSON parsing for text: {}", &request.text[..std::cmp::min(100, request.text.len())]);
         match parser.parse(&request.text) {