Plug-in type stage truss

The utility model discloses a plug-in type stage truss, which belongs to the technical field of stage truss structures, and comprises support columns and a fixed support, the fixed support is a triangular frame, the three support columns are fixed on the fixed support, the three support columns are positioned at three corners of the inner wall of the fixed support, and the support columns are fixed on the fixed support. A first fixing plate and a second fixing plate are fixedly installed among the three supporting columns, a threaded rod is rotatably installed on the first fixing plate, a threaded sleeve is rotatably installed on the second fixing plate, a positioning rod is fixedly installed at the top end of each supporting column, and a positioning groove matched with the positioning rod is formed in the bottom end of each supporting column. According to the utility model, the truss can be quickly assembled, and the truss is simple in structure, light in weight, easy to assemble, capable of being convenien