diff --git a/kclvm/sema/src/advanced_resolver/node.rs b/kclvm/sema/src/advanced_resolver/node.rs
index da2d82521..6df4640a1 100644
--- a/kclvm/sema/src/advanced_resolver/node.rs
+++ b/kclvm/sema/src/advanced_resolver/node.rs
@@ -846,6 +846,7 @@ impl<'ctx> AdvancedResolver<'ctx> {
                 | ast::Expr::Schema(_)
                 | ast::Expr::ConfigIfEntry(_)
                 | ast::Expr::Quant(_)
+                | ast::Expr::Lambda(_)
         ) {
             let (start, end) = expr.get_span_pos();
             self.ctx.start_pos = start;
diff --git a/kclvm/tools/src/LSP/src/completion.rs b/kclvm/tools/src/LSP/src/completion.rs
index 8cb74d1e2..0e6939892 100644
--- a/kclvm/tools/src/LSP/src/completion.rs
+++ b/kclvm/tools/src/LSP/src/completion.rs
@@ -1824,4 +1824,43 @@ mod tests {
             CompletionResponse::List(_) => panic!("test failed"),
         }
     }
+
+    #[macro_export]
+    macro_rules! completion_label_test_snapshot {
+        ($name:ident, $file:expr, $line:expr, $column: expr, $trigger: expr) => {
+            #[test]
+            fn $name() {
+                insta::assert_snapshot!(format!("{:?}", {
+                    let (file, program, _, gs) = compile_test_file($file);
+
+                    let pos = KCLPos {
+                        filename: file.clone(),
+                        line: $line,
+                        column: Some($column),
+                    };
+                    let tool = toolchain::default();
+
+                    let mut got = completion($trigger, &program, &pos, &gs, &tool).unwrap();
+
+                    match &mut got {
+                        CompletionResponse::Array(arr) => {
+                            let mut labels: Vec<String> =
+                                arr.iter().map(|item| item.label.clone()).collect();
+                            labels.sort();
+                            labels
+                        }
+                        CompletionResponse::List(_) => panic!("test failed"),
+                    }
+                }));
+            }
+        };
+    }
+
+    completion_label_test_snapshot!(
+        lambda_1,
+        "src/test_data/completion_test/lambda/lambda_1/lambda_1.k",
+        8,
+        5,
+        None
+    );
 }
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__lambda_1.snap b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__lambda_1.snap
new file mode 100644
index 000000000..31b3c212e
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__lambda_1.snap
@@ -0,0 +1,5 @@
+---
+source: tools/src/LSP/src/completion.rs
+expression: "format!(\"{:?}\", labels)"
+---
+["abs(…)", "all_true(…)", "any_true(…)", "bin(…)", "bool(…)", "case", "cases", "dict(…)", "float(…)", "func1", "hex(…)", "int(…)", "isunique(…)", "len(…)", "list(…)", "max(…)", "min(…)", "multiplyof(…)", "oct(…)", "option(…)", "ord(…)", "pow(…)", "print(…)", "range(…)", "round(…)", "sorted(…)", "str(…)", "sum(…)", "typeof(…)", "zip(…)"]
diff --git a/kclvm/tools/src/LSP/src/test_data/completion_test/lambda/lambda_1/lambda_1.k b/kclvm/tools/src/LSP/src/test_data/completion_test/lambda/lambda_1/lambda_1.k
new file mode 100644
index 000000000..5874be935
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/test_data/completion_test/lambda/lambda_1/lambda_1.k
@@ -0,0 +1,9 @@
+cases: [str] =  ["a"]
+
+func1 = lambda elems: [any], func: (any) -> (any) {
+    
+}
+
+func1(cases, lambda case: str {
+    
+})