Cold-chain transportation cold insulation bag

Disclosed is a cold-chain transportation cold insulation bag. The cold-chain transportation cold insulation bag is used for the industry of long-distance refrigeration transportation of aquatic products, fresh products, processed food, chemical agents, biological products and electronic products. The cold-chain transportation cold insulation bag comprises a plurality of thermal insulation units. Each thermal insulation unit comprises a carton package, a plastic cover on the outer layer, a water storage block arranged in the plastic cover, and water arranged in the plastic cover. Each plastic cover is made of two layers of plastic materials, wherein the edges of the plastic materials are connected to form an edge piece, a cavity is formed between the plastic materials, and the water storage blocks and the water are arranged in the cavities. The thermal insulation units are connected through the edge pieces. The shape of the cold-chain transportation cold insulation bag is fixed, the cold-chain transportation c