The invention provides a field-surveying-mapping protection umbrella based on the Beidou positioning technology. The field-surveying-mapping protection umbrella based on the Beidou positioning technology mainly comprises an umbrella head, a center shaft, stators, bearings, rotors, tires, rivets, BDS receivers, BDS antennae, storage batteries and a protection umbrella body. The umbrella head is in threaded connected with the top of an umbrella handle of the protection umbrella body; the center shaft penetrates through the umbrella head in the radial direction, and the two ends of the center shaft are each provided with the two stators, one bearing and one rotor; openings of every two circular-cap stators on the two sides of the umbrella head are inward and oppositely arranged, cavities with the certain gaps formed in the middle are formed, and the stators are arranged on the center shaft through the rivets; the center shaft is sleeved with the bearings, the bearings are located in the middles of the stator cavities, the bearings are sleeved with the rotors, rotor supporting bodies are located in gaps in the stator cavities, and the inner diameters of the rotors are larger than the outer diameters of the stators; the BDS receivers, the BDS antennae and the storage batteries are welded on the inner walls of the stator cavities. The tires drive the rotors to rotate, magnetic poles of permanent magnets in the rotors rotate, currents are generated in stator winding and stored in the storage batteries, and power is supplied to positioning elements.