diff --git a/kclvm/sema/src/core/scope.rs b/kclvm/sema/src/core/scope.rs
index d4e9b723b..51d19c4f5 100644
--- a/kclvm/sema/src/core/scope.rs
+++ b/kclvm/sema/src/core/scope.rs
@@ -493,65 +493,74 @@ impl Scope for LocalSymbolScope {
     ) -> Option<SymbolRef> {
         match self.defs.get(name) {
             Some(symbol_ref) => return Some(*symbol_ref),
-            None => match (local, get_def_from_owner) {
-                // Search in the current scope and owner
-                (true, true) => {
+            None => {
+                // Try to get the attributes in the schema's protocol and mixin, and get the schema attr by `get_def_from_owner`
+                if let LocalSymbolScopeKind::SchemaDef = self.kind {
                     if let Some(owner) = self.owner.as_ref() {
-                        let owner_symbol = symbol_data.get_symbol(*owner)?;
-                        if let Some(symbol_ref) =
-                            owner_symbol.get_attribute(name, symbol_data, module_info)
-                        {
-                            return Some(symbol_ref);
+                        if let Some(owner_schema) = symbol_data.get_schema_symbol(*owner) {
+                            let attrs =
+                                owner_schema.get_protocol_and_mixin_attrs(symbol_data, module_info);
+                            for attr in attrs {
+                                if let Some(symbol) = symbol_data.get_symbol(attr) {
+                                    if symbol.get_name() == name {
+                                        return Some(attr);
+                                    }
+                                }
+                            }
                         }
                     }
-                    None
-                }
-                // Search only in the current scope
-                (true, false) => {
-                    let parent = scope_data.get_scope(&self.parent)?;
-                    return parent.look_up_def(
-                        name,
-                        scope_data,
-                        symbol_data,
-                        module_info,
-                        local,
-                        get_def_from_owner,
-                    );
                 }
-                // Search in the current scope, parent scope and owner
-                (false, true) => {
-                    if let Some(owner) = self.owner.as_ref() {
-                        let owner_symbol = symbol_data.get_symbol(*owner)?;
-                        if let Some(symbol_ref) =
-                            owner_symbol.get_attribute(name, symbol_data, module_info)
-                        {
-                            return Some(symbol_ref);
+
+                match (local, get_def_from_owner) {
+                    // Search in the current scope and owner
+                    (true, true) => {
+                        if let Some(owner) = self.owner.as_ref() {
+                            let owner_symbol = symbol_data.get_symbol(*owner)?;
+                            if let Some(symbol_ref) =
+                                owner_symbol.get_attribute(name, symbol_data, module_info)
+                            {
+                                return Some(symbol_ref);
+                            }
                         }
-                    };
-
-                    let parent = scope_data.get_scope(&self.parent)?;
-                    return parent.look_up_def(
-                        name,
-                        scope_data,
-                        symbol_data,
-                        module_info,
-                        local,
-                        get_def_from_owner,
-                    );
-                }
-                // Search in the current and parent scope
-                (false, false) => {
-                    let parent = scope_data.get_scope(&self.parent)?;
-                    return parent.look_up_def(
-                        name,
-                        scope_data,
-                        symbol_data,
-                        module_info,
-                        local,
-                        get_def_from_owner,
-                    );
+                        None
+                    }
+                    // Search only in the current scope
+                    (true, false) => None,
+                    // Search in the current scope, parent scope and owner
+                    (false, true) => {
+                        if let Some(owner) = self.owner.as_ref() {
+                            let owner_symbol = symbol_data.get_symbol(*owner)?;
+                            if let Some(symbol_ref) =
+                                owner_symbol.get_attribute(name, symbol_data, module_info)
+                            {
+                                return Some(symbol_ref);
+                            }
+                        };
+
+                        let parent = scope_data.get_scope(&self.parent)?;
+                        return parent.look_up_def(
+                            name,
+                            scope_data,
+                            symbol_data,
+                            module_info,
+                            local,
+                            get_def_from_owner,
+                        );
+                    }
+                    // Search in the current and parent scope
+                    (false, false) => {
+                        let parent = scope_data.get_scope(&self.parent)?;
+                        return parent.look_up_def(
+                            name,
+                            scope_data,
+                            symbol_data,
+                            module_info,
+                            local,
+                            get_def_from_owner,
+                        );
+                    }
                 }
-            },
+            }
         }
     }
 
diff --git a/kclvm/sema/src/core/symbol.rs b/kclvm/sema/src/core/symbol.rs
index 6a0485bf6..fcfaa52a7 100644
--- a/kclvm/sema/src/core/symbol.rs
+++ b/kclvm/sema/src/core/symbol.rs
@@ -1253,16 +1253,12 @@ impl SchemaSymbol {
         }
     }
 
-    pub fn get_self_attr(
+    pub fn get_protocol_and_mixin_attrs(
         &self,
         data: &SymbolData,
         module_info: Option<&ModuleInfo>,
     ) -> Vec<SymbolRef> {
         let mut result = vec![];
-        for attribute in self.attributes.values() {
-            result.push(*attribute);
-        }
-
         if let Some(for_host) = self.for_host {
             if let Some(for_host) = data.get_symbol(for_host) {
                 result.append(&mut for_host.get_all_attributes(data, module_info))
@@ -1273,6 +1269,20 @@ impl SchemaSymbol {
                 result.append(&mut mixin.get_all_attributes(data, module_info))
             }
         }
+
+        result
+    }
+
+    pub fn get_self_attr(
+        &self,
+        data: &SymbolData,
+        module_info: Option<&ModuleInfo>,
+    ) -> Vec<SymbolRef> {
+        let mut result = vec![];
+        for attribute in self.attributes.values() {
+            result.push(*attribute);
+        }
+        result.extend(self.get_protocol_and_mixin_attrs(data, module_info));
         result
     }
 }
diff --git a/kclvm/tools/src/LSP/src/goto_def.rs b/kclvm/tools/src/LSP/src/goto_def.rs
index 2e94bb04e..4ccb68e55 100644
--- a/kclvm/tools/src/LSP/src/goto_def.rs
+++ b/kclvm/tools/src/LSP/src/goto_def.rs
@@ -551,4 +551,18 @@ mod tests {
         33,
         10
     );
+
+    goto_def_test_snapshot!(
+        goto_protocol_attr,
+        "src/test_data/goto_def_test/goto_protocol/goto_protocol.k",
+        6,
+        17
+    );
+
+    goto_def_test_snapshot!(
+        goto_protocol_attr_1,
+        "src/test_data/goto_def_test/goto_protocol/goto_protocol.k",
+        8,
+        13
+    );
 }
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__goto_def__tests__goto_protocol_attr.snap b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__goto_def__tests__goto_protocol_attr.snap
new file mode 100644
index 000000000..2acbdbb07
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__goto_def__tests__goto_protocol_attr.snap
@@ -0,0 +1,5 @@
+---
+source: tools/src/LSP/src/goto_def.rs
+expression: "format!(\"{:?}\", { fmt_resp(& res) })"
+---
+"path: \"src/test_data/goto_def_test/goto_protocol/goto_protocol.k\", range: Range { start: Position { line: 1, character: 4 }, end: Position { line: 1, character: 8 } }"
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__goto_def__tests__goto_protocol_attr_1.snap b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__goto_def__tests__goto_protocol_attr_1.snap
new file mode 100644
index 000000000..2acbdbb07
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__goto_def__tests__goto_protocol_attr_1.snap
@@ -0,0 +1,5 @@
+---
+source: tools/src/LSP/src/goto_def.rs
+expression: "format!(\"{:?}\", { fmt_resp(& res) })"
+---
+"path: \"src/test_data/goto_def_test/goto_protocol/goto_protocol.k\", range: Range { start: Position { line: 1, character: 4 }, end: Position { line: 1, character: 8 } }"
diff --git a/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_protocol/goto_protocol.k b/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_protocol/goto_protocol.k
new file mode 100644
index 000000000..2788435cc
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_protocol/goto_protocol.k
@@ -0,0 +1,8 @@
+protocol AProtocol:
+    name?: str
+
+mixin AMixin for AProtocol:
+    config = {
+        data = name
+    }
+    data = name
\ No newline at end of file