diff --git a/app/src/main/kotlin/jackall/overlaymulticounter/utils/AdUtil.kt b/app/src/main/kotlin/jackall/overlaymulticounter/utils/AdUtil.kt
new file mode 100644
index 0000000..3e57027
--- /dev/null
+++ b/app/src/main/kotlin/jackall/overlaymulticounter/utils/AdUtil.kt
@@ -0,0 +1,25 @@
+package jackall.overlaymulticounter.utils
+
+import android.content.Context
+import android.widget.FrameLayout
+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
+
+/**
+ * Created by matsumoto_k on 2017/11/10.
+ */
+class AdUtil {
+    companion object {
+        fun startBannerAd(context: Context, frameLayout: FrameLayout, adSize: AdSize, unitId: String) {
+            MobileAds.initialize(context)
+            val adBannerView = AdView(context)
+            adBannerView.adSize = adSize
+            adBannerView.adUnitId = unitId
+            frameLayout.addView(adBannerView)
+            val adBannerRequest = AdRequest.Builder().build()
+            adBannerView.loadAd(adBannerRequest)
+        }
+    }
+}
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