Wide-base low-section tire molding vulcanization process and wide-base low-section tire

The invention provides a wide-base low-section tire forming vulcanization process and a wide-base low-section tire, and belongs to the field of tire manufacturing. The wide-base low-section tire molding vulcanization process adopts a two-drum molding machine for molding, and comprises the following steps: sequentially laminating a tire side wall, a lining layer, a seam allowance reinforcing layer, a tire body and cushion rubber on a main drum, rolling, and buckling a steel wire ring to form a main drum composite part; a first belted layer, a second belted layer, a third belted layer, a zero-degree belted layer and a tread are sequentially attached to the auxiliary drum to form an auxiliary drum composite part; the auxiliary drum composite part is transferred to the main drum through the transfer ring, and a tire blank is formed after pre-shaping, shaping and over-shaping operations are carried out; and carrying out low-temperature vulcanization on the tire blank at 141 DEG C by using a hot plate type vulcaniz