The utility model discloses an equipment foundations are with quick positioner of cyclic annular rag bolt, a serial communication port, including central location structure, center location structuresets up on the reinforcing bar wire side and location axle sleeve that be located cyclic annular rag bolt centre of a circle position including fixed, is connected with a plurality of stay cords groupthat is circular array distributed at the outer peripheral face of location axle sleeve, and the outer end one -to -one of each stay cord group be connected with the bolt locating plate, can make each bolt location hoarding become one after the stay cord of stay cord group is outwards flare -outed and use the location axle sleeve as the annular in the centre of a circle, use on each bolt locatingplate and fix a position the axle sleeve and be provided with a plurality of rag bolt locating holes that are circular array distributed as the centre of a circle. The utility model has the advantages of simple structure, the location is accurate, and positioning quality is stable, facilitates the use.