Positioning device for fabricated concrete prefabricated column

A positioning device of an assembly type concrete prefabricated column comprises a positioning piece, a positioning sleeve, a handle and an auxiliary calibration mechanism, the auxiliary calibration mechanism is arranged at the top of the positioning piece, before an embedded bolt is poured, a cover body covers the surface of the positioning piece, before the concrete pouring process, the precision of the position of the embedded bolt can be ensured, and the positioning accuracy of the embedded bolt is improved. The cover body is arranged on the edge of the top of the cover body so as to ensure that the assembling process is accurate and rapid, in the concrete pouring process, the cover body and the protective sleeve wrap the positioning piece and the embedded bolt, the situation that the connecting position of the positioning piece and the embedded bolt is polluted, and consequently the positioning piece is difficult to disassemble is avoided, and a locking mechanism is arranged on the edge of the top of the