The invention discloses an automatic molding vulcanization system and method for rubber products. The system includes a logistics system and a plurality of molding vulcanization units with the same structure; the logistics system is arranged at both ends of each molding vulcanization unit; the molding vulcanization unit includes a vulcanizer (1), feeding mechanism (2), feeding auxiliary mechanism (5) and unloading mechanism (3); the logistics system includes feeding conveyor belt (6), unloading conveyor belt (7), motor A (8), motor B (9), finished product collection box (10), vibrating screen (11), mold conveyor belt (12), motor C (13), grabbing robot (14) and mold storage warehouse (15). The mold cavity of the present invention is small, the size is small, and the tonnage of the vulcanizing machine is small, so the vulcanization cost is low, and the mold can be automatically matched and the billet can be automatically molded and vulcanized. After the production task is completed, the mold can be automatically replaced to carry out the production task of the next drawing number, which is especially suitable Molded and vulcanized for military special rubber products.