The invention relates to the field of glassware mechanical equipment, in particular to a high borosilicate glass pot moulding die. The die includes a pot wall mould and a pot bottom mould, the outer wall surface of the pot wall mould is provided with a circle of "L" shaped barb, the pot wall mould is formed by butt joint of a pot wall mould A and a pot wall mould B that are divided along the center, and the lower center of the pot bottom mould is equipped with a movable pin, the bottom center of the pot wall mould B is equipped with a threaded hole, in which a limit block equipped with a waist-shaped hole is installed through bolts, after the pot wall mould B and the pot bottom mould are assembled, the movable pin can slide in the waist-shaped hole, the inner cavity of the pot wall mould Aand pot wall mould B is equipped with a plurality of bulge parts along the circumferential direction according to the shape of the glass pot, a plurality of through air holes are distributed along the circumference at the inner wall top and bottom of the pot wall mould A and pot wall mould B, each of the bulge parts and the joints of the bulge parts and the inner cavity, and the pot bottom mouldis also equipped with a plurality of through air holes. The high borosilicate glass pot moulding die provided by the invention is precise in positioning during use, and the produced glass pot is highin quality.