diff --git a/app/src/main/kotlin/jackall/moncalc/service/MainService.kt b/app/src/main/kotlin/jackall/moncalc/service/MainService.kt
index 0044248..5665904 100644
--- a/app/src/main/kotlin/jackall/moncalc/service/MainService.kt
+++ b/app/src/main/kotlin/jackall/moncalc/service/MainService.kt
@@ -11,10 +11,6 @@
 import android.os.IBinder
 import android.support.v4.app.NotificationCompat
 import android.view.*
-import com.google.android.gms.ads.AdRequest
-import com.google.android.gms.ads.AdSize
-import com.google.android.gms.ads.AdView
-import com.google.android.gms.ads.MobileAds
 import jackall.moncalc.Const
 import jackall.moncalc.R
 import jackall.moncalc.activity.MainActivity
@@ -24,12 +20,12 @@
 import jackall.moncalc.contract.MainServiceContract
 import jackall.moncalc.databinding.RegistOverlayBinding
 import jackall.moncalc.db.MonstDataRealmHelper
+import jackall.moncalc.utils.AdUtil
 import jackall.moncalc.utils.MySharedPref
 import jackall.moncalc.viewmodel.OverlayRegistViewModel
 import jackall.moncalc.viewmodel.OverlayViewModel
 import jackall.moncalc.vo.Temple
 import kotlinx.android.synthetic.main.move_overlay.view.*
-import kotlinx.android.synthetic.main.regist_overlay.view.*
 
 
 /**
@@ -134,16 +130,6 @@
         registBinding.templeSpinner.adapter = templeSpinnerAdapter
     }
 
-    fun showOverlayBannerAd() {
-        MobileAds.initialize(this)
-        val adBannerView = AdView(this)
-        adBannerView.adSize = AdSize.BANNER
-        adBannerView.adUnitId = Const.overlayBannerUnitId
-        registBinding.root.overlayBannerLayout.addView(adBannerView)
-        val adBannerRequest = AdRequest.Builder().build()
-        adBannerView.loadAd(adBannerRequest)
-    }
-
     override fun showMoveView() {
         moveViewParams?.x = mySharedPref.getValue(PreferenceKeys.VIEWX, Int::class.java, 0) as Int
         moveViewParams?.y = mySharedPref.getValue(PreferenceKeys.VIEWY, Int::class.java, 0) as Int
@@ -156,7 +142,7 @@
     }
 
     override fun showRegistView() {
-        showOverlayBannerAd()
+        AdUtil.startBannerAd(this, registBinding.overlayBannerLayout, Const.overlayBannerUnitId)
         if (moveOverlayView.isShown) {
             windowManager.removeView(moveOverlayView)
         }