The invention provides a hole column for a cold-formed thin-walled steel house. The hole column comprises a U-shaped steel column I, a U-shaped steel column II and a steel plate. The steel plate is connected between the U-shaped steel column I and the U-shaped steel column II. During construction, a U-shaped steel top guide beam and a U-shaped steel bottom guide beam are installed at the top and the bottom of the hole column in a covering mode correspondingly. The hole column is simple in structure, convenient to machine, easy to install and is beneficial for further promotion of cold-formed thin-walled steel building.