The utility model discloses a three -dimensional positioner paves suitable for F2 track, belongs to the technical field of construction machinery, the device includes the module by planar positioning signal reception, planar positioning mechanism that planar positioning signal -radiation module constitutes and by the height measurement laser receiving module, the elevation positioning mechanism that height measurement laser transmitting module constitutes, still including embedding the angular transducer in the connecting rod, angular transducer is connected with the height measurement laser receiving module, belonging to the field of engineering machine technology, height measurement laser receiving module and angular transducer constitute three -dimensional positioning mechanism, it is three -dimensional that positioning mechanism is vertical installs on the screed. Through at the built -in angular transducer of connecting rod, revise the elevation on of the paving road surface according to angular transducer measuring angle, overcome because the road surface cross slope drawback that reduces of the height measurement precision that leads to of reverse cycling track road surface of swaing in succession.