diff --git a/bin/lang/english.json b/bin/lang/english.json
index fdef4c4..d4603fa 100644
--- a/bin/lang/english.json
+++ b/bin/lang/english.json
@@ -97,5 +97,7 @@
 "IDC_STATIC_USE_GPU_NO":"Use GPU No",
 "IDC_RADIO_MODEL_UPCONV_RGB":"2-D illust (UpRGB Model)",
 "IDC_RADIO_MODEL_UPCONV_PHOTO":"Photo (UpPhoto Model)",
-"MessageLogFatalError":"A fatal error has occurred.\r\nThere is a possibility the split size is too large"
+"MessageLogFatalError":"A fatal error has occurred.\r\nThere is a possibility the split size is too large",
+"IDC_STATIC_BATCH_SIZE":"Batch size",
+"MessageBatchSizeCheckError":"Batch size must be greater than 0",
 }
diff --git a/bin/lang/japanese.json b/bin/lang/japanese.json
index b165bb7..230c962 100644
--- a/bin/lang/japanese.json
+++ b/bin/lang/japanese.json
@@ -97,5 +97,7 @@
 "IDC_STATIC_USE_GPU_NO":"使用GPU No",
 "IDC_RADIO_MODEL_UPCONV_RGB":"2次元イラスト (UpRGBモデル)",
 "IDC_RADIO_MODEL_UPCONV_PHOTO":"写真・アニメ (UpPhotoモデル)",
-"MessageLogFatalError":"致命的なエラーが発生しました。\r\n分割サイズが大きすぎる可能性があります"
+"MessageLogFatalError":"致命的なエラーが発生しました。\r\n分割サイズが大きすぎる可能性があります",
+"IDC_STATIC_BATCH_SIZE":"バッチサイズ",
+"MessageBatchSizeCheckError":"バッチサイズは0より大きい整数である必要があります"
 }
diff --git a/waifu2x-caffe-gui/MainDialog.cpp b/waifu2x-caffe-gui/MainDialog.cpp
index 60205a5..c730093 100644
--- a/waifu2x-caffe-gui/MainDialog.cpp
+++ b/waifu2x-caffe-gui/MainDialog.cpp
@@ -25,6 +25,8 @@
 
 const size_t AR_PATH_MAX(1024);
 
+const int MaxBatchSizeList = 20;
+
 const int MinCommonDivisor = 50;
 const int DefaultCommonDivisor = 128;
 const std::pair<int, int> DefaultCommonDivisorRange = {90, 140};
@@ -38,6 +40,7 @@ const TCHAR * const MultiFileStr = TEXT("(Multi File)");
 
 const UINT_PTR nIDEventTimeLeft = 1000;
 
+
 LangStringList DialogEvent::langStringList;
 HWND DialogEvent::dh;
 
@@ -488,6 +491,22 @@ bool DialogEvent::SyncMember(const bool NotSyncCropSize, const bool silent)
 		}
 	}
 
+	{
+		TCHAR buf[AR_PATH_MAX] = TEXT("");
+		GetWindowText(GetDlgItem(dh, IDC_COMBO_BATCH_SIZE), buf, _countof(buf));
+		buf[_countof(buf) - 1] = TEXT('\0');
+
+		TCHAR *ptr = nullptr;
+		batch_size = _tcstol(buf, &ptr, 10);
+		if (!ptr || *ptr != '\0' || batch_size <= 0)
+		{
+			batch_size = 1;
+			ret = false;
+
+			MessageBox(dh, langStringList.GetString(L"MessageBatchSizeCheckError").c_str(), langStringList.GetString(L"MessageTitleError").c_str(), MB_OK | MB_ICONERROR);
+		}
+	}
+
 	use_tta = SendMessage(GetDlgItem(dh, IDC_CHECK_TTA), BM_GETCHECK, 0, 0) == BST_CHECKED;
 
 	return ret;
@@ -1116,6 +1135,8 @@ void DialogEvent::SaveIni(const bool isSyncMember)
 
 	WritePrivateProfileString(TEXT("Setting"), TEXT("LastInputDirFix"), tInputDirFix.c_str(), getTString(SettingFilePath).c_str());
 	WritePrivateProfileString(TEXT("Setting"), TEXT("LastOutputDirFix"), tOutputDirFix.c_str(), getTString(SettingFilePath).c_str());
+
+	WritePrivateProfileString(TEXT("Setting"), TEXT("LastBatchSize"), to_tstring(batch_size).c_str(), getTString(SettingFilePath).c_str());
 }
 
 struct stFindParam
@@ -1596,6 +1617,7 @@ void DialogEvent::SetWindowTextLang()
 	SET_WINDOW_TEXT(IDC_BUTTON_OUTPUT_REF);
 	SET_WINDOW_TEXT(IDC_BUTTON_APP_SETTING);
 	SET_WINDOW_TEXT(IDC_BUTTON_CLEAR_OUTPUT_DIR);
+	SET_WINDOW_TEXT(IDC_STATIC_BATCH_SIZE);
 
 #undef SET_WINDOW_TEXT
 
@@ -1794,6 +1816,21 @@ void DialogEvent::Create(HWND hWnd, WPARAM wParam, LPARAM lParam, LPVOID lpData)
 		}
 	}
 
+	{
+		HWND hbatch = GetDlgItem(dh, IDC_COMBO_BATCH_SIZE);
+
+		// �o�b�`�T�C�Y���X�g�ɐ����˂�����ł���
+		int mindiff = INT_MAX;
+		int defaultListIndex = -1;
+		for(int i = 1; i <= MaxBatchSizeList; i++)
+		{
+			tstring str(to_tstring(i));
+			SendMessage(hbatch, CB_ADDSTRING, 0, (LPARAM)str.c_str());
+		}
+
+		SendMessage(hbatch, CB_SETCURSEL, 0, 0);
+	}
+
 	{
 		HWND hcrop = GetDlgItem(dh, IDC_COMBO_CROP_SIZE);
 
@@ -1896,6 +1933,8 @@ void DialogEvent::Create(HWND hWnd, WPARAM wParam, LPARAM lParam, LPVOID lpData)
 		GetPrivateProfileString(TEXT("Setting"), TEXT("LastOutputDirFix"), TEXT(""), tmp, _countof(tmp), getTString(SettingFilePath).c_str());
 		tmp[_countof(tmp) - 1] = TEXT('\0');
 		tOutputDirFix = tmp;
+
+		batch_size = GetPrivateProfileInt(TEXT("Setting"), TEXT("LastBatchSize"), 1, getTString(SettingFilePath).c_str());
 	}
 
 	TCHAR *ptr = nullptr;
@@ -2069,6 +2108,11 @@ void DialogEvent::Create(HWND hWnd, WPARAM wParam, LPARAM lParam, LPVOID lpData)
 	else
 		SendMessage(GetDlgItem(hWnd, IDC_CHECK_TTA), BM_SETCHECK, BST_UNCHECKED, 0);
 
+	if (1 <= batch_size && batch_size <= MaxBatchSizeList)
+	{
+		SendMessage(GetDlgItem(dh, IDC_COMBO_BATCH_SIZE), CB_SETCURSEL, batch_size - 1, 0);
+	}
+
 	SetWindowText(GetDlgItem(hWnd, IDC_EDIT_SCALE_RATIO), tScaleRatio.c_str());
 	SetWindowText(GetDlgItem(hWnd, IDC_EDIT_SCALE_WIDTH), tScaleWidth.c_str());
 	SetWindowText(GetDlgItem(hWnd, IDC_EDIT_SCALE_HEIGHT), tScaleHeight.c_str());
@@ -2440,7 +2484,8 @@ void DialogEvent::Create(HWND hWnd, WPARAM wParam, LPARAM lParam, LPVOID lpData)
 
 				if (cmdBatchSizeFile.isSet())
 				{
-					batch_size = cmdBatchSizeFile.getValue();
+					SetWindowText(GetDlgItem(dh, IDC_COMBO_CROP_SIZE), to_tstring(cmdCropSizeFile.getValue()).c_str());
+					//batch_size = cmdBatchSizeFile.getValue();
 
 					isSetParam = true;
 				}
diff --git a/waifu2x-caffe-gui/Resource.rc b/waifu2x-caffe-gui/Resource.rc
index 4f1d7f0..01e0a49 100644
Binary files a/waifu2x-caffe-gui/Resource.rc and b/waifu2x-caffe-gui/Resource.rc differ
diff --git a/waifu2x-caffe-gui/resource.h b/waifu2x-caffe-gui/resource.h
index 097195b..10d9d74 100644
Binary files a/waifu2x-caffe-gui/resource.h and b/waifu2x-caffe-gui/resource.h differ