The thick sheet blister machine is a key process equipment for making plastic molded plastic parts through a vacuum blister molding process with plastic sheets as raw materials. It uses thermoplastic sheets as raw materials, heated to softening temperature in an oven, and then passes through plastic sheets The vacuum negative pressure between it and the blister forming mold causes the plastic sheet in a thermoplastic state to be adsorbed on the working surface of the blister forming mold and then cooled and formed.