Temperature control device of rectifier cabinet

A rectifier cabinet temperature control device disclosed by the present application comprises a cabinet body, a heat dissipation plate and a temperature control box, the heat dissipation plate is installed on the side edge of the interior of the cabinet body, the temperature control box is installed on the bottom side of the interior of the cabinet body, the heat dissipation plate comprises a plurality of temperature plates, and each temperature plate sequentially comprises a thermal insulation layer, an oil pipe layer and a heat dissipation layer. A plurality of oil ports are formed in the two ends of the oil pipe layer, a groove is formed in one side edge of each temperature plate, a protrusion is installed on the other side edge of each temperature plate, and the temperature plates are connected through the oil ports, the grooves and the protrusions. The temperature control device has the effects that the energy utilization efficiency is improved, and the installation convenience of the temperature control