Improved food packaging bag

The utility model discloses an improved food packaging bag, which is applied to the field of food packaging and is characterized in that a rear bag body is fixedly adhered to the rear side of a front bag body, contact pieces are fixedly adhered to opposite surfaces of the front bag body and the rear bag body, and connecting pieces are adhered to the opposite surfaces of the front bag body and the rear bag body and positioned at the bottoms of the contact pieces. When needed food is placed in a distinguished mode, one kind of food is preferentially placed at the bottom of the bag body, then the separation pieces are folded and bent downwards, the separation piece on one side of the front bag body is preferentially arranged on the top of the food on the lower layer in an overlapped mode, and then the separation piece on one side of the rear bag body is arranged on the other separation piece in an overlapped mode. At the moment, the other kind of food can be placed on the separation pieces, the two kinds of food