diff --git a/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt b/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt
index 0ff046e..a6e03c5 100644
--- a/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt
+++ b/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt
@@ -4,11 +4,16 @@
 import android.arch.lifecycle.LifecycleObserver
 import android.arch.lifecycle.OnLifecycleEvent
 import android.arch.lifecycle.ViewModel
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
 
 /**
  * ViewModelの基底クラス
  */
 abstract class BaseViewModel : ViewModel(), LifecycleObserver {
+
+    val compositeDisposable = CompositeDisposable()
+
     @OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
     open fun onCreate() {
     }
@@ -32,4 +37,13 @@
     @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
     open fun onDestroy() {
     }
+
+    fun addDisposable(disposable: Disposable) {
+        compositeDisposable.add(disposable)
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+        compositeDisposable.clear()
+    }
 }
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