The invention provides an installation structure for low-voltage equipment of a +/-800kV converter station DC field. The installation structure comprises a reactor base, a 50Hz wave trapper capacitorsupport structure, a 50Hz wave trapper lightning arrester support structure and a 100Hz wave trapper lightning arrester support structure, wherein the reactor base is distributed in an I shape, the 50Hz wave trapper lightning arrester support structure and the 100Hz wave trapper lightning arrester support structure are arranged in parallel to the reactor base, and the 50Hz wave trapper capacitor support structure is arranged between the reactor base and the 50Hz wave trapper lightning arrester support structure. By the installation structure, a safe distance can be kept between the low-voltageequipment of the +/-800kV converter station DC field, favorable shock absorption performance of each electrical loop during high-intensity earthquake is ensured, the displacement acceleration amplification coefficient of equipment support pillar conforms to the shock absorption stipulation requirement of power facility, so that the normal running demand of the electrical equipment is met; and byoptimizing the arrangement of the DC filed, the occupied land area of the +/-800kV converter station DC field is reduced, and the land resource is favorably saved.