diff --git a/native-repo/modules/step-5-hldp-search.js b/native-repo/modules/step-5-hldp-search.js
new file mode 100644
index 0000000..6538238
--- /dev/null
+++ b/native-repo/modules/step-5-hldp-search.js
@@ -0,0 +1,43 @@
+/**
+ * HLDP-ZY://native-repo/module/step-5
+ * 光湖原生数据库 · 第5步 · ripgrep搜索模块
+ *
+ * @chain: D118 · 2026-05-31
+ * @module: hldp-search
+ * @step: 第5步 / 共8步
+ * @deploy: BS-SG-002
+ *
+ * hldpSearch(query) → rg 执行 → HLDP格式返回
+ * 输入: query 字符串
+ * 输出: [{ file, line, content }]
+ */
+
+const { execSync } = require('child_process');
+const { NATIVE_DIR } = require('./step-2-git-init');
+
+function hldpSearch(query) {
+  try {
+    const result = execSync(
+      `rg -n --no-heading -M 200 "${query.replace(/[$"\\]/g, '\\$&')}" ${NATIVE_DIR} --glob '!.git' --glob '!node_modules' 2>/dev/null`,
+      { encoding: 'utf8', timeout: 10000, maxBuffer: 1024 * 1024 }
+    );
+
+    if (!result.trim()) return { ok: true, query, count: 0, results: [] };
+
+    const results = result.trim().split('\n').slice(0, 50).map(line => {
+      const [file, lnum, ...rest] = line.split(':');
+      return {
+        file: file.replace(NATIVE_DIR + '/', ''),
+        line: parseInt(lnum),
+        content: rest.join(':').trim(),
+      };
+    });
+
+    return { ok: true, query, count: results.length, results };
+  } catch (e) {
+    if (e.status === 1) return { ok: true, query, count: 0, results: [] };
+    return { ok: false, error: e.message };
+  }
+}
+
+module.exports = { hldpSearch };