diff --git a/src/core/hdlparam.rs b/src/core/hdlparam.rs
index eb3b99c..d848a66 100644
--- a/src/core/hdlparam.rs
+++ b/src/core/hdlparam.rs
@@ -406,6 +406,19 @@ impl HdlParam {
         None
     }
 
+    /// 遍历 path_string 下的所有 module，并根据条件返回
+    pub fn walk_module(&self, path_string: &str, condition: impl Fn(&Module) -> bool) -> Option<Module> {
+        let path_to_hdl_file = self.path_to_hdl_file.read().unwrap();
+        if let Some(hdl_file) = path_to_hdl_file.get(path_string) {
+            for def_module in &hdl_file.fast.content {
+                if condition(def_module) {
+                    return Some(def_module.clone());
+                }
+            }
+        }
+        None
+    }
+
     /// 遍历 path_string 下的所有 instance，并根据条件返回
     pub fn walk_instantiation(&self, path_string: &str, condition: impl Fn(&Module, &Instance) -> bool) -> Option<Instance> {
         let path_to_hdl_file = self.path_to_hdl_file.read().unwrap();
diff --git a/src/hover/sv.rs b/src/hover/sv.rs
index cfa7b1d..f19790a 100644
--- a/src/hover/sv.rs
+++ b/src/hover/sv.rs
@@ -41,7 +41,12 @@ pub fn hover(server: &LSPServer, params: &HoverParams) -> Option<Hover> {
 
     // match module name
     if let Some(hover) = hover_module_declaration(server, &token, &language_id) {
-        return Some(hover);
+        // info!("[LSPServer] in hover: get module hover");
+
+        if hover_for_module(server, pos, doc) {
+            // info!("[LSPServer] in hover: it is instance");
+            return Some(hover);
+        }
     }
 
     // match digit 5'b00110
@@ -290,3 +295,25 @@ fn hover_common_symbol(
     make_hover_with_comment(&file.text, def_line, &language_id, false)
 }
 
+fn hover_for_module(server: &LSPServer, pos: Position, doc: &Url) -> bool {
+    let pathbuf = PathBuf::from_str(doc.path()).unwrap();
+    let pathbuf = to_escape_path(&pathbuf);
+    let path_string = pathbuf.to_str().unwrap().replace("\\", "/");
+    let hdlparam = server.srcs.hdl_param.clone();
+    let find_instance_range = |_: &Module, instance: &Instance| {
+        pos.line + 1 == instance.range.start.line
+    };
+    let find_module_range = |module: &Module| {
+        pos.line + 1 == module.range.start.line
+    };
+    if let Some(_) = hdlparam.walk_module(&path_string, find_module_range) {
+        // info!("[LSPServer] in hover: it is module");
+        true
+    } else if let Some(_) = hdlparam.walk_instantiation(&path_string, find_instance_range) {
+        // info!("[LSPServer] in hover: it is instance");
+        true
+    } else {
+        // info!("[LSPServer] in hover: it is not instance");
+        false
+    }
+}