diff --git a/scripts/deploy-nas.cjs b/scripts/deploy-nas.cjs
index ef4edd7..751ba60 100644
--- a/scripts/deploy-nas.cjs
+++ b/scripts/deploy-nas.cjs
@@ -1,5 +1,6 @@
 const { execSync } = require("child_process");
 const fs = require("fs");
+const os = require("os");
 const path = require("path");
 
 // Load .env.local from project root if present (persists NAS_SSH_TARGET etc.)
@@ -55,7 +56,11 @@ if (isWin) {
       process.exit(1);
     }
 
-    const sshCmd = cleanPort ? `ssh -p ${cleanPort}` : "ssh";
+    // macOS Keychain은 서브프로세스(rsync)에서 SSH 키를 자동 로드하지 못함 → -i 명시
+    const keyFile = process.env.NAS_SSH_KEY || path.join(os.homedir(), ".ssh", "id_rsa");
+    const portOpt = cleanPort ? `-p ${cleanPort}` : "";
+    const sshCmd = `ssh ${portOpt} -i "${keyFile}" -o StrictHostKeyChecking=accept-new -o BatchMode=yes`.trim();
+
     console.log(`Deploying via SSH → ${cleanTarget}:${cleanPath}`);
     console.log(`SSH command: ${sshCmd}`);
     execSync(