Abstract: In recent years, the photovoltaic industry has developed rapidly and the installed capacity of photovoltaic power generation has continued to increase. Photovoltaic power stations have put forward higher requirements for photovoltaic monitoring systems. This article designs and implements a photovoltaic intelligent monitoring system, which not only meets the monitoring and control requirements of traditional photovoltaic power stations, but also adds intelligent analysis functions to quickly identify abnormal inverters or photovoltaic strings. At the same time, it provides secure and reliable remote access function, which can facilitate operation and maintenance personnel to obtain power station operation information anytime and anywhere, ensuring the safe, reliable, stable and efficient operation of the photovoltaic power generation system.