Formwork system for pouring prefabricated parts integrating drainage ditches and cable trenches

The utility model provides a template system for pouring a prefabricated part integrated with a drainage ditch and a cable trench, the right end of a first left horizontal plate of a left outer template abuts against and is detachably connected with the left end of a second right arc-shaped plate of a right outer template, and a left inner template and a right inner template are both located between the left outer template and the right outer template. The upper end of a first left vertical plate of the left outer formwork is connected with a second left horizontal plate of the left inner formwork through a left connecting piece, the upper end of a fourth left vertical plate of the left inner formwork is connected with the upper end of a fourth right vertical plate of the right inner formwork through a middle connecting piece, and a second right horizontal plate of the right inner formwork is connected with the upper end of a first right vertical plate of the right outer formwork through a right connecting pi