The invention discloses an automatic commodity vending device, which comprises a shell, a commodity shelf, a conveying element, a commodity output member, an information collecting element and a processor, wherein the commodity shelf, the conveying element, the commodity output member, the information collecting element and the processor are arranged in the shell; the commodity shelf is used for bearing a commodity; the conveying element is located between the commodity shelf and the commodity output element, and is used for conveying the commodity from the commodity shelf into the commodity output element; the processor is connected with the conveying element, the commodity output element and the information collecting element respectively; the shell is provided with a bin outlet; a commodity outlet of the commodity output element is communicated with the bin outlet, wherein the information collecting element comprises an identity information reader, an image collector or a fingerprint recorder. The invention also discloses a real-name vending method of an automatic commodity vending machine and the automatic commodity vending machine. In the automatic commodity vending device, the identity information of a purchaser is collected through arranging the information collecting element on the automatic commodity vending device; after the identity information of the purchaser is authenticated, the identity information is associated with the commodity through the processor to obtain the commodity in a real-name registration system; the automatic commodity vending device is usedfor vending the commodity, needing the real-name registration system, in a real-name manner, and the quick purchase of a consumer is convenient.