Abstract:This paper designs a solar photovoltaic power generation monitoring system based on LabVIEW, to aiming at the problems of incomplete real-time data acquisition and lack of monitoring data in the new energy generation system. The lower computer uses STM32F105 as the main control chip, voltage detection components PCF8591、LM75A temperature detection, three cup wind speed detection, BH1750 light intensity detection and other chips to form the solar photovoltaic power generation monitoring module circuit. The upper computer uses LabVIEW to realize real-time display of monitoring parameters, fault alarm and record, intelligent opening and closing of monitoring system and centralized management. The system error range is less than ±10%, and the accurate value range of simulation data and standard data is between 0.5~20. Compared with the traditional photovoltaic power generation monitoring system, it is more energy saving, environmental protection, more intelligent, and more convenient for systematic centralized management.