Heat preservation handbag

Heat preservation handbag. A multi-layer composite material is adopted and is integrally formed through folding, heat sealing and die cutting. The handbag solves the problems that an existing handbagwith the heat preservation effect needs to be sewn by various materials and then spliced, objects contained in the handbag are often too heavy, a hand lifting part and a bag body are broken and separated, and liquid contained in the handbag can be prevented from leaking. The packaging bag comprises a bag body which is of an integrated structure, the bag body comprises a bottom wall and folding walls arranged on the front side and the rear side of the bottom wall, the folding walls are folded to form a front wall and a rear wall, the two side edges of the front wall are connected with the two side edges of the rear wall, and the bottom edges of the front wall and the rear wall are connected with the bottom wall; openings capable of being opened and closed are formed in the upper ends of thefront wall and the rear w