diff --git a/SDWebImage/SDWebImageManager.h b/SDWebImage/SDWebImageManager.h
index 9c7a753f..2afd6e1f 100644
--- a/SDWebImage/SDWebImageManager.h
+++ b/SDWebImage/SDWebImageManager.h
@@ -118,4 +118,9 @@ typedef void(^SDWebImageCompletedWithFinishedBlock)(UIImage *image, NSError *err
  */
 - (void)cancelAll;
 
+/**
+ * Check one or more operations running
+ */
+- (BOOL)isRunning;
+
 @end
diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
index c185b7ee..384e0abd 100644
--- a/SDWebImage/SDWebImageManager.m
+++ b/SDWebImage/SDWebImageManager.m
@@ -134,6 +134,11 @@
     [self.runningOperations removeAllObjects];
 }
 
+- (BOOL)isRunning
+{
+    return self.runningOperations.count > 0;
+}
+
 @end
 
 @implementation SDWebImageCombinedOperation