Die for fabricating watertight connector socket and fabrication method of die

The invention relates to a die for fabricating watertight connector socket and a fabrication method of the die. The fabrication method comprises the steps of performing roughening, cyclizing and primer coating on a pin and a socket shell; installing the pin on an insulation positioning support block after primer is dried; welding a wire and the pin on the insulation positioning support block; installing and fixing the pin and the insulation positioning support block of the wire in the socket shell; pouring an engineering plastic sealing body at a tail part of the socket shell; and finally, installing a socket workpiece formed by pouring and curing and a die core, placing the socket workpiece and the die core in a pre-heated die cavity for die combination, tightening a locking screw sleeve,placing the socket workpiece on a vulcanization machine, vulcanizing a pressure injection adhesive, curing the socket workpiece after a set time, and taking the socket workpiece out of the die. A gapis formed between an end