The invention relates to an automatic catering vending system. The automatic catering vending system comprises a cabinet body, a computer, input equipment, a refrigerating bin and a heating bin, wherein a carrying bin is arranged on the rear side of the refrigerating bin; a transverse sliding track is arranged on the top of the carrying bin; a carrying trolley is arranged on the transverse slidingtrack and is provided with a longitudinal sliding track; the longitudinal sliding track is provided with a lifting trolley; a rear sealing door is arranged on the rear side of the heating bin; a microwave heater is arranged in the heating bin; and refrigeration equipment is arranged at the bottom of the cabinet body. Different kinds of fast food are refrigerated by the separated refrigerating bin, workers can supplement goods in idle time favorably, supply of fast food of a vending place can be ensured for a long time, owing to an integrated structure, use and mounting of equipment are facilitated, the heating bin is integrated in the cabinet body, heat of the fast food is realized, left-right movement of the lifting trolley is realized by the carrying trolley in the carrying bin, liftingcontrol over a clamping seat is realized by lifting of the lifting trolley, and fast movement of the clamping seat is realized favorably to carry the fast food.