The invention discloses an antistatic plastic building template, which is formed by pressing an upper face plate, a center partition plate and a lower face plate through a hot melt process. The upper face plate, the center partition plate and the lower face plate are prepared from the same raw materials in parts by weight: 90 to 110 parts of high-density polyethylene, 180 to 220 parts of shed plastic film-regenerated granules, 23 to 27 parts of mica powder and 3 to 7 parts of desiccant. The plastic building template provided by the invention replaces a solid plastic building template, and in the case of unchanged light weight, the usage of the raw materials is greatly reduced; the molding processing technology of a plastic product is relatively simple, thus the production difficulty of the building template is reduced, and processing cost of the template is reduced. According to the invention, the antistatic function of the plastic building template is improved and the flame retardancy is also improved by mixing the high-density polyethylene, the shed plastic film-regenerated granules and the mica powder according to a specific proportion.