diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f5cab0eb..c6eb3bca 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,6 +21,7 @@
     <uses-permission android:name="android.permission.READ_PHONE_NUMBERS" />
     <!--Android 9（API 级别 28）或更高版本并使用前台服务，则其必须请求 FOREGROUND_SERVICE 权限-->
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 
     <application
         android:name=".MyApplication"
diff --git a/app/src/main/java/com/idormy/sms/forwarder/FrontService.java b/app/src/main/java/com/idormy/sms/forwarder/FrontService.java
index 277f818b..734e4e1e 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/FrontService.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/FrontService.java
@@ -10,9 +10,10 @@ import android.os.Build;
 import android.os.IBinder;
 import android.util.Log;
 
-import androidx.annotation.Nullable;
-
 import com.idormy.sms.forwarder.utils.OSUtils;
+import com.idormy.sms.forwarder.utils.PhoneUtils;
+
+import androidx.annotation.Nullable;
 
 
 public class FrontService extends Service {
@@ -60,6 +61,11 @@ public class FrontService extends Service {
             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             startActivity(intent);
         }
+        // 手机重启，未打开app时，主动获取SIM卡信息
+        if (MyApplication.SimInfoList.isEmpty()) {
+            PhoneUtils.init(this);
+            MyApplication.SimInfoList = PhoneUtils.getSimMultiInfo();
+        }
     }
 
     @Nullable
diff --git a/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java b/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java
index 9e8a3a00..5191ef7e 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java
@@ -18,9 +18,6 @@ import android.widget.AdapterView;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatActivity;
-
 import com.idormy.sms.forwarder.BroadCastReceiver.SmsForwarderBroadcastReceiver;
 import com.idormy.sms.forwarder.adapter.LogAdapter;
 import com.idormy.sms.forwarder.model.vo.LogVo;
@@ -34,6 +31,9 @@ import com.umeng.analytics.MobclickAgent;
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
 public class MainActivity extends AppCompatActivity implements ReFlashListView.IReflashListener {
 
     ServiceConnection conn = new ServiceConnection() {
@@ -73,8 +73,6 @@ public class MainActivity extends AppCompatActivity implements ReFlashListView.I
 
         //获取SIM信息
         PhoneUtils.init(this);
-        MyApplication.SimInfoList = PhoneUtils.getSimMultiInfo();
-        Log.d(TAG, "SimInfoList = " + MyApplication.SimInfoList);
 
         //短信&网络组件初始化
         SmsUtil.init(this);
@@ -301,6 +299,11 @@ public class MainActivity extends AppCompatActivity implements ReFlashListView.I
     protected void onResume() {
         super.onResume();
         MobclickAgent.onResume(this);
+		//第一次打开，申请权限前无法获取SIM信息，尝试在此重新获取
+        if (MyApplication.SimInfoList.isEmpty()) {
+            MyApplication.SimInfoList = PhoneUtils.getSimMultiInfo();
+        }
+        Log.d(TAG, "SimInfoList = " + MyApplication.SimInfoList.size());
     }
 
     @Override
diff --git a/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java b/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java
index 3a58691f..0f8cba94 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java
@@ -9,11 +9,13 @@ import android.widget.CompoundButton;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.Switch;
+import android.widget.Toast;
 
-import androidx.appcompat.app.AppCompatActivity;
-
+import com.idormy.sms.forwarder.utils.KeepAliveUtils;
 import com.idormy.sms.forwarder.utils.SettingUtil;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 
 public class SettingActivity extends AppCompatActivity {
     private String TAG = "SettingActivity";
@@ -223,4 +225,11 @@ public class SettingActivity extends AppCompatActivity {
 
     }
 
+    public void batterySetting(View view) {
+        if (KeepAliveUtils.isIgnoreBatteryOptimization(this)) {
+            Toast.makeText(this,R.string.isIgnored,Toast.LENGTH_SHORT).show();
+        } else {
+            KeepAliveUtils.ignoreBatteryOptimization(this);
+        }
+    }
 }
diff --git a/app/src/main/java/com/idormy/sms/forwarder/utils/KeepAliveUtils.java b/app/src/main/java/com/idormy/sms/forwarder/utils/KeepAliveUtils.java
new file mode 100644
index 00000000..72616f9e
--- /dev/null
+++ b/app/src/main/java/com/idormy/sms/forwarder/utils/KeepAliveUtils.java
@@ -0,0 +1,38 @@
+package com.idormy.sms.forwarder.utils;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.os.PowerManager;
+import android.provider.Settings;
+import android.widget.Toast;
+
+import com.idormy.sms.forwarder.R;
+
+public class KeepAliveUtils {
+
+    public static boolean isIgnoreBatteryOptimization(Activity activity) {
+        PowerManager powerManager = (PowerManager) activity.getSystemService(Context.POWER_SERVICE);
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M && powerManager != null) {
+            return powerManager.isIgnoringBatteryOptimizations(activity.getPackageName());
+        } else {
+            return true;
+        }
+    }
+
+    public static void ignoreBatteryOptimization(Activity activity) {
+        if (isIgnoreBatteryOptimization(activity)) {
+            return;
+        }
+        Intent intent = new Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
+        intent.setData(Uri.parse("package:" + activity.getPackageName()));
+        ResolveInfo resolveInfo = activity.getPackageManager().resolveActivity(intent, 0);
+        if (resolveInfo != null) {
+            activity.startActivity(intent);
+        } else {
+            Toast.makeText(activity, R.string.unsupport, Toast.LENGTH_SHORT).show();
+        }
+    }
+}
diff --git a/app/src/main/res/layout/activity_setting.xml b/app/src/main/res/layout/activity_setting.xml
index e61e73ba..2509e80c 100644
--- a/app/src/main/res/layout/activity_setting.xml
+++ b/app/src/main/res/layout/activity_setting.xml
@@ -293,6 +293,16 @@
             android:padding="0dp"
             android:text="恢复初始化配置" />
 
+        <Button
+            android:id="@+id/btnBatterySetting"
+            android:layout_width="match_parent"
+            android:layout_height="35dp"
+            android:layout_margin="10dp"
+            android:background="@color/colorPrimary"
+            android:onClick="batterySetting"
+            android:padding="0dp"
+            android:text="设置电池优化" />
+
     </LinearLayout>
 
 </ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 97bb907b..ee855ffc 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -21,4 +21,6 @@
     <string name="log_tips">提示：置顶下拉刷新，长按删除单条记录</string>
     <string name="rule_tips">提示：新建规则点击“添加”，长按删除/点击编辑已有</string>
     <string name="sender_tips">提示：新建发送方点击“添加”，长按删除/点击编辑已有</string>
+    <string name="unsupport">您的手机不支持此设置</string>
+    <string name="isIgnored">已设置成功！</string>
 </resources>