public void installApk() { File file = new File(Environment.getExternalStorageDirectory().getAbsoluteFile() + "/ABCD/" + "AA_TESTDA.apk"); try { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); startActivity(intent); finish(); } catch(Exception e) {} }[출처] 안드로이드 apk 자동설치|작성자 스윙칩