diff --git a/src/search_db/mod.rs b/src/search_db/mod.rs
index 7753324..1cd80ec 100644
--- a/src/search_db/mod.rs
+++ b/src/search_db/mod.rs
@@ -38,16 +38,24 @@ pub struct SearchDb {
 
 impl SearchDb {
     pub async fn new(db_path: &str) -> Result<Self, sqlx::Error> {
-        if let Some(parent) = std::path::Path::new(db_path).parent() {
+        // 确保父目录存在
+        let path = std::path::Path::new(db_path);
+        if let Some(parent) = path.parent() {
             if !parent.exists() {
                 std::fs::create_dir_all(parent)?;
             }
         }
-        if !std::path::Path::new(db_path).exists() {
-            std::fs::File::create(db_path)?;
-        }
 
-        let url = format!("sqlite:{}", db_path.replace('\\', "/"));
+        // 转换为绝对路径并创建文件（如果不存在）
+        let abs_path = std::fs::canonicalize(db_path)
+            .unwrap_or_else(|_| {
+                // canonicalize 要求文件存在，所以先创建再转换
+                std::fs::File::create(db_path).ok();
+                std::fs::canonicalize(db_path).unwrap_or_else(|_| path.to_path_buf())
+            });
+
+        // 使用 sqlite:/// 前缀 + 绝对路径，避免相对路径解析错误
+        let url = format!("sqlite:///{}", abs_path.to_string_lossy().replace('\\', "/"));
 
         let pool = SqlitePoolOptions::new()
             .max_connections(2)