The invention discloses a recyclable PC-ABS plastic building template, relates to the field of building templates and aims to solve the problem of poor reusability of existing building templates. Thebuilding template is technically characterized by being prepared from the following raw materials in parts by weight: 50-65 parts of polycarbonate, 45-70 parts of carbon black modified ABS plastic, 15-26 parts of alkali-free glass fiber, 8-15 parts of polydimethylsiloxane-maleic anhydride, 10-15 parts of carbon black-benzophenone, 10-16 parts of polyacrylamide-acetic acid and 10-18 parts of triphenyl phosphate. The template is reusable.