Conventional watermeter detection has many drawbacks such as low efficiency, low reliability and so on. To counter these drawbacks, a wireless watermeter errordetecting system was proposed, in which sensors, ZigBee wireless communication technology and upper computer were integrated. Laser sensor was taken as a signal pickup device, CC2530 RF MCU was taken as data processing and transmission platform in the system, and the control software of the upper computer was written with VC++60.To test the effectiveness of the system, experiments were carried out. The results show that the system not only overcomes the shortcomings of conventional detection methods, but also has advantages of simple system organization, easy laywires, high measurement accuracy etc.