Disclosed is a host box and a split-type television, wherein the host box includes a box body and a cover plate, a circuit board is mounted within the box body, the circuit board includes an external line interface, and the box body is provided with an aperture corresponding to the external line interface; the cover plate is movably mounted at the aperture, and the cover plate can open the aperture so that the external line is directly connected to the external line interface, or the cover plate can close the aperture.