Forming die for composite case body of electronic equipment

A forming die for a composite case body of electronic equipment comprises a die casing, wherein the die casing is formed through the connection of a front side plate, a rear side plate, a left side plate, a right side plate and a door lining board; a positioning reference plate is arranged inside the die casing; more than two mounting hole positioning pins are arranged on each of the front side plate and the rear side plate; positioning pins on the left side plate and the right side plate are movably matched with waste-shaped holes on the door lining board; positioning pins on the positioning reference plate are fixedly matched with through holes in the door lining board; the left side plate is arranged at the left end parts of the front side plate and the rear side plate; the right side plate is arranged at the right end parts of the front side plate and the rear side plate; vertical connection angle plates are arranged inside the joints among the left side plate, the right side plate, the front side plate a