The invention discloses an automatic feeding machine. The automatic feeding machine comprises a rotary disc mechanism, a suction mechanism and a lifting mechanism located between the rotary disc mechanism and the suction mechanism. The rotary disc mechanism comprises a rotary disc and at least two containing devices which are located on the periphery of the rotary disc and used for containing materials, and hole structures are formed in the bottoms of the containing devices. The lifting mechanism comprises a lifting frame used for lifting materials upwards from the hole structures in the bottoms of the containing devices. The suction mechanism comprises a sucker, wherein the sucker can be controlled through a program to move to a position above the containing device on the side where the lifting mechanism is located so as to suck the materials. The automatic feeding machine can effectively solve the problems that in the prior art, feeding efficiency is low, and errors are caused easily.