Multi-layer air bubble film and multi-layer air bubble film packaging bag

The utility model belongs to the technical field of packaging materials, and particularly relates to a multilayer bubble film which comprises a base layer, flame-retardant layers are arranged on the inner side and the outer side of the base layer, damping bulbs are arranged on the sides, away from each other, of the two flame-retardant layers, the inner sides of the damping bulbs are filled with gas, and at least one tensile layer is arranged on the inner side of the base layer. A connecting cavity is formed between every two adjacent damping bulbs and used for communicating every two adjacent damping bulbs, and a wear-resistant layer is arranged on the outer side of each damping bulb and the outer side of the corresponding connecting cavity; a multi-layer air bubble film packaging bag comprises a packaging bag body, easy-to-tear notches are formed in the two sides of one end of the packaging bag body, and a hanging groove is further formed in the outer side of the packaging bag body. According to the air bub