To provide a system for shopping with a simple operation by displaying commodity information on a screen after a commodity is specified by coordinate information of an existing monitoring camera.

A commodity purchase system includes monitoring cameras for monitoring inside a shop and photographing commodities in the shop, a control terminal for controlling the above monitoring cameras through a control box, a management server having a database retaining a variety of information sets in regard to the commodities and customers, and performing communication with the above control box via the Internet, and a customer terminal for exchanging images and data with the above control box or the management server through the Internet. Through the operation of the above monitoring camera from the customer terminal, a commodity can be selected from the photographed commodity images, and the commodity can be purchased.