The utility model relates to the technical field of power supply screens, and discloses a shielding type direct-current power supply screen, which comprises a base, a box body arranged on the base, a box door fixedly arranged on one side of the box body, a penetrating window arranged on the box door, shielding glass arranged in the penetrating window, a lower part of the box body fixed on the base, and an air groove communicated with the inside of the box body arranged on the base. Slots are symmetrically formed in the base, filter screens are inserted into the slots, a pressing plate is fixed to the base, an air outlet is formed in the back side of the base, a fan is fixed to the outer side of the air outlet, and V-shaped structures are arranged on the two sides of the fan. When the base of the direct-current screen is installed, the extension length of the ground feet on the base is changed, so that the direct-current screen is far away from the ground, the damp probability is reduced, gas in the cabinet body is dissipated through the fan, efficient heat dissipation in the cabinet body is achieved, heat dissipation in the whole cabinet body can be absorbed, heat dissipation is integrated on the base, and the heat dissipation efficiency is improved. The heat dissipation effect is improved, the influence on the cabinet body is avoided, and the working effect of the power supply screen can be ensured.