In order to resolve the problems of poor safety, lacking control and communication techniques and low management level in current countryside grid, an intelligent monitoring and management system of countryside power supply district transformer based on GPRS technology is proposed in this paper. On the basis of system overall design, wireless communication networking and communication protocol of this system are designed. Network communication project based on .NET technology and TCP/IP protocol is designed to realize network communication between terminal and front server. Function of management information of system primary station is also analysed in this text. This system will promote our countryside grid’s automaticlevel and make it more reliable, more secure and more economical.