Firstly, the installation height (from light source to ground), elevation and lighting direction of LED street lamp on the same road should be kept consistent. The excavation dimension of foundation pit should conform to the design requirements. The strength grade of foundation concrete should not be lower than C20. The cable sheath in the foundation should pass through the center of the foundation and exceed the foundation plane by 30-50 mm. Before pouring reinforced concrete foundation, water accumulation in pit must be eliminated. The metal components used in the installation of LED street lamp, such as lamp pole, lamp arm, hoop, bolt and pressing plate, should be galvanized by hot dip galvanizing, and the quality of corrosion protection should conform to the relevant provisions of the current national standards.