A kind of long-range reading water gauge system based on GPRS is designed. The device can realize network meter reading and USB centralized meter reading by the GPRS module M23 and the MCU C8051F340 .This paper introduces the overall scheme of the system. The hardware and software of the device are introduced. It focuses on the analysis of the AT directive and the embedded TCP/IP protocol instruction format of GPRS communication program. It also introduces the method of USB communication procedures. The system realizes the remote centralized meter reading meter, which can effectively solve the problem of the accuracy of meter reading, It will also improve the water company's management level and management efficiency.%设计了一种基于GPRS的水表远程集中抄表装置，该装置通过GPRS模块M23和单片机C8051F340分别完成网络抄表和USB集中抄表。文中介绍了系统的总体方案及GPRS抄表装置硬件设计和软件设计，着重分析了GPRS通讯程序设计中AT指令和嵌入式TCP/IP协议的指令格式、使用方法以及USB通讯程序设计方法。该系统的设计，实现了水表的远程集中抄表，提高了抄表的准确性及用水管理部门的管理水平和效率。
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