The invention discloses a wireless meter reading system which can avoid wiring and reduce costs. The system comprises a basic meter, an acquisition device, a concentrator and a server, wherein the server is located in a public network and communicates with the concentrator through a 3G/4G network, the acquisition device is supplied with power through a battery, the concentrator, the acquisition device and the basic meter are in wireless communication by using a 470MHz frequency band, and the wireless communication is set on two frequency points, and wireless working frequency of the concentrator is set to be a first frequency point; wireless working frequency of the basic meter is set to be a second frequency point; wireless working frequency of the acquisition device is defaulted to be the first frequency point and the working frequency of the acquisition device can be switched between the first frequency point and the second frequency point.