Attachment device of inclined steel column

The utility model relates to an attaching device of an inclined steel column. The attaching device comprises a fixed plate, a fixed plate and a fixed plate, wherein the fixed plate is fixed on the surface of the inclined steel column; the supporting plate is rotationally connected to the bottom end of the fixing plate, a plurality of connecting holes are formed in the supporting plate at intervals in the length direction, and the supporting plate is kept vertical by rotating the supporting plate, so that the supporting plate is fixedly connected with the construction machine; the connecting plates are rotationally connected to the top end of the fixing plate and matched with the connecting holes, and the connecting plates are rotated and penetrate through the corresponding connecting holes, so that the connecting plates are kept horizontal and fixedly connected with the supporting plate. The utility model effectively solves the problem that the stability of the attachment point on the inclined steel column ca