The main function of the fishing light complementary photovoltaic bracket is to erect the supporting structure of photovoltaic panels above the water surface of the fish pond. Therefore, humidity, long-term weather resistance and reliability should be considered when selecting the photovoltaic bracket. Components will be harmed by water vapor and salt in water vapor. High humidity and frequent water surface fluctuation will also cause PID effect in photovoltaic modules, leading to hidden crack problem. In addition, various conditions should be considered in the design according to the characteristics of higher structural strength requirements of the support system, so as to comprehensively and effectively guarantee the operation and maintenance safety of the power station.