Plastics is kind of polymer material, both surface and volumetric resistivity is greater than 10e12. Therefore, plastic materials have great insulating properties. But on the other hand, it can easily generate static electricity, which results from handling, contact, separation, friction, collisions, etc. An effective control method is to add moisture absorption of plastic harmless (auxiliary) materials, to reduce their surface resistance, which is called plastic anti-static agent, options of anti-static agent should be chosen according to plastic varieties to achieve desired anti-static properties.