diff --git a/kclvm/sema/src/core/symbol.rs b/kclvm/sema/src/core/symbol.rs
index 853c8e67f..ac877df99 100644
--- a/kclvm/sema/src/core/symbol.rs
+++ b/kclvm/sema/src/core/symbol.rs
@@ -507,6 +507,17 @@ impl SymbolData {
                 symbol_ref,
             );
         }
+
+        for (id, _) in self.values.iter() {
+            let symbol_ref = SymbolRef {
+                id,
+                kind: SymbolKind::Function,
+            };
+            self.symbols_info.fully_qualified_name_map.insert(
+                self.get_fully_qualified_name(symbol_ref).unwrap(),
+                symbol_ref,
+            );
+        }
     }
 
     pub fn alloc_package_symbol(&mut self, pkg: PackageSymbol) -> SymbolRef {
diff --git a/kclvm/tools/src/LSP/src/document_symbol.rs b/kclvm/tools/src/LSP/src/document_symbol.rs
index 7aae5434e..29b466b5d 100644
--- a/kclvm/tools/src/LSP/src/document_symbol.rs
+++ b/kclvm/tools/src/LSP/src/document_symbol.rs
@@ -130,6 +130,7 @@ fn symbol_kind_to_document_symbol_kind(kind: KCLSymbolKind) -> Option<SymbolKind
         KCLSymbolKind::Schema => Some(SymbolKind::STRUCT),
         KCLSymbolKind::Attribute => Some(SymbolKind::PROPERTY),
         KCLSymbolKind::Value => Some(SymbolKind::VARIABLE),
+        KCLSymbolKind::Function => Some(SymbolKind::FUNCTION),
         KCLSymbolKind::Package => Some(SymbolKind::PACKAGE),
         KCLSymbolKind::TypeAlias => Some(SymbolKind::TYPE_PARAMETER),
         KCLSymbolKind::Unresolved => Some(SymbolKind::NULL),
diff --git a/kclvm/tools/src/LSP/src/semantic_token.rs b/kclvm/tools/src/LSP/src/semantic_token.rs
index 635b3ea82..bb290e9a6 100644
--- a/kclvm/tools/src/LSP/src/semantic_token.rs
+++ b/kclvm/tools/src/LSP/src/semantic_token.rs
@@ -16,6 +16,7 @@ pub const LEGEND_TYPE: &[SemanticTokenType] = &[
     SemanticTokenType::MACRO,
     SemanticTokenType::COMMENT,
     SemanticTokenType::PARAMETER,
+    SemanticTokenType::FUNCTION,
 ];
 
 pub(crate) struct KCLSemanticToken {
@@ -63,6 +64,7 @@ pub(crate) fn get_kind(ty: SymbolKind, symbol: &KCLSymbol, gs: &GlobalState) ->
         SymbolKind::Package => Some(type_index(SemanticTokenType::NAMESPACE)),
         SymbolKind::TypeAlias => Some(type_index(SemanticTokenType::TYPE)),
         SymbolKind::Value => Some(type_index(SemanticTokenType::VARIABLE)),
+        SymbolKind::Function => Some(type_index(SemanticTokenType::FUNCTION)),
         SymbolKind::Rule => Some(type_index(SemanticTokenType::MACRO)),
         SymbolKind::Unresolved => match &symbol.get_definition() {
             Some(def_ref) => match gs.get_symbols().get_symbol(*def_ref) {