Surveying and mapping auxiliary device

The utility model relates to the technical field of construction cost, in particular to a surveying and mapping auxiliary device which comprises a surveying and mapping instrument body, a supporting frame is rotatably installed at the lower end of the surveying and mapping instrument body, three upper supporting legs are rotatably installed at the lower end of the supporting frame, a lower supporting leg is movably installed at the lower end of each upper supporting leg, and the surveying and mapping instrument body is provided with a surveying and mapping instrument body. And a supporting foot is fixedly mounted at the lower end part of each lower supporting leg. The stability of the first supporting plates on the soft ground can be improved through the second supporting plates, the sunken degree is reduced, the multiple rubber tooth blocks are arranged on the upper surface of each upper sliding sleeve, the multiple rubber tooth blocks can play a good anti-skid role, the supporting legs are prevented from sl