Positioning device for mounting embedded bolt

The utility model relates to the technical field of concrete structure prefabrication construction, in particular to a positioning device for embedded bolt installation, which comprises a detection plate provided with a plurality of bolt holes for embedded bolts to pass through; the at least three positioning pieces are connected to the same side of the detection plate, and the ends, away from the detection plate, of the multiple positioning pieces are arranged in a coplanar mode and define a positioning plane parallel to the detection plate. As the plurality of positioning pieces form a positioning plane parallel to the positioning pieces on the other side of the detection plate, the detection plate is parallel to a related structural surface after the plurality of positioning pieces are in contact with the related structural surface at the same time, and the detection plate can be detected according to whether a plurality of embedded bolts on the structural surface can pass through a plurality of bolt holes