The utility model discloses a bar reinforcement positioning device relates to construction technical field. In constructing with the sleeve butt joint of PC member to preformed reinforcement bar in the cast -in -place building structure, both relative position unmanageable problems, it includes a steel bushing board, sets up a plurality of spacing holes on the steel bushing board, the internal diameter in spacing hole matches with cast -in -place building structure's preformed reinforcement bar's external diameter, and the telescopic position of spacing hole, preformed reinforcement bar and PCmember is corresponding.