The medium and low speed maglev steel aluminum composite contact rail is set up on both sides of the track beam, and transmits electric energy to the locomotive through the current collector. The conductor rail has good conductivity, large bearing current and three-way adjustable insulation support, which can effectively solve the installation problem of contact rail caused by civil engineering error, and effectively prevent the vertical deflection of contact rail, and meet the requirements of high-speed smooth transition of collector shoe.