Flat single-axis tracking photovoltaic brackets are divided into north-south axis tracking and east-west axis tracking. East-west axis tracking does not have obvious advantages over fixed inclined installation. The effect of north-south axis tracking is better than that of east-west axis tracking. The flat single-axis photovoltaic bracket has one axis that automatically tracks the sun in the east-west direction every day. It has a simpler structure, ingenious assembly and strong terrain adaptability. The rotating parts are made of stainless steel, maintenance-free, and have a design life of more than 25 years. In the middle and low latitude regions, increase investment by about 5-8%, and at the same time promote power generation by 15%-25%, bringing more returns to investors.