diff --git a/.github/scripts/label-pull-request.mjs b/.github/scripts/label-pull-request.mjs
index 22041164d..64ffbddb9 100644
--- a/.github/scripts/label-pull-request.mjs
+++ b/.github/scripts/label-pull-request.mjs
@@ -99,7 +99,7 @@ function normalizeChangedFiles(changedFiles) {
 
 function conventionalType(title) {
   const normalized = String(title || "").trim().replace(/^[^\p{L}\p{N}]+/u, "");
-  return /^([a-z]+)(?:\([^)]*\))?!?:/i.exec(normalized)?.[1]?.toLowerCase() || null;
+  return /^([a-z]+)(?:\([^)]*\))?!?[:：]/i.exec(normalized)?.[1]?.toLowerCase() || null;
 }
 
 export function isDocumentationFile(file) {
diff --git a/.github/scripts/label-pull-request.test.mjs b/.github/scripts/label-pull-request.test.mjs
index da63ac3d0..eb40362d4 100644
--- a/.github/scripts/label-pull-request.test.mjs
+++ b/.github/scripts/label-pull-request.test.mjs
@@ -88,6 +88,16 @@ test("does not treat component tests or MCP server code as UI or deploy changes"
   assert.deepEqual(result.labels, ["area/desktop", "area/mcp", "bug"]);
 });
 
+test("recognizes conventional titles with a full-width colon", () => {
+  const result = evaluatePullRequestLabels({
+    title: "Fix：补全 GaussDB M 模式 SQL 生成",
+    changedFiles: ["crates/dbx-core/src/db/mod.rs"],
+    knownDatabaseTypes,
+  });
+
+  assert.deepEqual(result.labels, ["area/core", "bug"]);
+});
+
 test("detects only newly added package dependencies", () => {
   const result = inferAddedDependencies(
     ["package.json"],