The utility model relates to the technical field of sleeping bags, and discloses a split type sleeping bag and an upper garment thereof, which comprise a sleeping bag hem, a through hole is arranged in the middle of the front wall of the sleeping bag hem, a zipper I is fixedly connected to the inner wall of the through hole, a zipper head I is arranged at one end of the zipper I, the front sides of the upper wall and the lower wall of the sleeping bag hem are fixedly connected with son buckles I, and the son buckles I are fixedly connected with son buckles II. First female buckles are fixedly connected to the rear sides of the upper wall and the lower wall of the sleeping bag lower hem, connecting strips are fixedly connected to the rear portions of the two sides of the sleeping bag lower hem, second female buckles are fixedly connected to one ends of the two connecting strips, and second male buckles are fixedly connected to the other ends of the two connecting strips. According to the utility model, under the combined action of the sleeping bag jacket, the sleeping bag lower hem, the connecting strip, the secondary buckle II and the primary buckle II, the sleeping bag can be designed into a split type, and the upper part of the sleeping bag is designed into a jacket style, so that the effects that the sleeping bag is convenient to put on, take off and carry and the use flexibility of the sleeping bag is improved are achieved.