The membrane material used in membrane structure buildings is a kind of membrane material with good strength and flexibility, which is woven into fabric base material by fibers, and processed and fixed with resin as coating material on both sides of the base material. The fabric base material in the center is divided into polyester fiber and glass fiber, The resins used as coating materials include polyvinyl chloride resin (PVC) and polytetrafluoroethylene resin (PTFE). In terms of mechanics, the fabric substrate and coating materials have the following functional properties respectively.