Die casting mould includes an upper mold body and a lower mold body, a hinge is fixed to the bottom edge of the upper mold body, and the other end of the hinge is fixed to the top edge of the lower mold body; The top surface of the upper mold body is provided with a gate, the bottom surface of the upper mold body is fixed with a fixed column, and the inside of the upper mold body is provided with a flow channel, a temperature measurement device, a control module and an alarm device, and the temperature measurement device is connected to the upper mold body.