diff --git a/bitmap/goBitmap.h b/bitmap/goBitmap.h
index 66ea9c8..f50bab2 100644
--- a/bitmap/goBitmap.h
+++ b/bitmap/goBitmap.h
@@ -54,6 +54,10 @@ bool bitmap_copy_to_pboard(MMBitmapRef bitmap){
 	return true;
 }
 
+MMBitmapRef bitmap_deepcopy(MMBitmapRef bitmap){
+	return bitmap == NULL ? NULL : copyMMBitmap(bitmap);
+}
+
 MMPoint aFindBitmap(MMBitmapRef bit_map, MMRect rect){
 	// MMRect rect;
 	// rect.size.width = 10;
diff --git a/robotgo.go b/robotgo.go
index e2b1554..59859df 100644
--- a/robotgo.go
+++ b/robotgo.go
@@ -680,6 +680,12 @@ func CopyBitpb(bitmap C.MMBitmapRef) bool {
 	return gbool
 }
 
+// DeepCopyBit deep copy bitmap
+func DeepCopyBit(bitmap C.MMBitmapRef) C.MMBitmapRef {
+	bit := C.bitmap_deepcopy(bitmap)
+	return bit
+}
+
 /*
  ___________    ____  _______ .__   __. .___________.
 |   ____\   \  /   / |   ____||  \ |  | |           |