Solar photovoltaic power generation is a way to utilize the solar energy. Power station monitoring system is ought to be established to maintain the safe and reliable operation of the photovoltaic system and to detect and solve the malfunctions promptly. The monitoring data of the photovoltaic power monitoring system is composed of environmental data, the related data of photovoltaic battery array and relevant data of inverter. The collection, preprocessing and wireless transmission of data are done by ZigBee, the wireless sensor network. The wireless network panel point of ZigBee is divided into FFD (Full Function Device) and RFD (Reduced Function Device), each of which has its own functions. It can conveniently collect surrounding environment information and status data of photovoltaic power on unattended conditions by ZigBee.