Connection installation positioning device for prefabricated columns

The utility model discloses a connection installation positioning device for prefabricated columns. The connection installation positioning device for the prefabricated columns comprises a positioning steel column and a positioning adjusting tool. A screw is arranged at the upper end of the steel column, a gear positioning nut is arranged at the lower end of the screw, and a welding positioning sheet is arranged at the lower end of the steel column. The positioning adjusting tool comprises a chuck, a bolt head, a spring, a pull bolt, a bolt way and a handle, the chuck is fixed to the gear positioning nut, the spring is arranged on the pull bolt, the bolt head is movably connected with the gear positioning nut, the handle is connected with the chuck, and the bolt way is arranged on the handle. The connection installation positioning device is simple in structure, convenient to operate and capable of effectively promoting the progress of fabricated installation of the fabricated columns of a house.