The invention provides an electronic commerce system and a method for realizing bulk commodity spot transactions. The system comprises user layer equipment, transmission layer equipment, access layer equipment, and service layer equipment, wherein the user layer equipment includes user terminal equipment, a warehouse unit, and a bank unit. The transmission layer equipment include an Internet network and a private network, the access layer equipment includes a user interface unit, an information inquiry issuing interface unit, a warehouse interface unit, a bank interface unit, and an information inquiry interface unit, and the service layer equipment includes a public data channel unit, a transaction server, a delivery server, an information management server, a data settlement server, a server sequence controller, and a data server. According to the electronic commerce system, the server sequence controller controls the transaction server, the delivery server and the settlement server, and a specific work sequence period is formed, thereby realizing spot transactions of commodities and everyday physical delivery, and a function of spot trade of commodities is truly realized by the electronic commerce system.