Land surveying and mapping equipment

The utility model discloses a land survey surveying and mapping device which comprises a level gauge and an installation disc, the level gauge is fixedly installed on the top of the installation disc, three first supporting arms are arranged at the lower end of the installation disc in a rotating mode, and second supporting arms are connected into the first supporting arms in a screwed mode. The lower end of the second supporting arm is connected with a third supporting arm through a rotating assembly, the rotating assembly comprises a first connecting rod, the upper end of the first connecting rod is rotationally arranged on the second supporting arm, the lower end of the first connecting rod is rotationally connected with a second connecting rod, and the other end of the second connecting rod is rotationally connected with the third supporting arm; and a first spiral sleeve is spirally connected outside the second supporting arm. According to the tripod, the length of the supporting arm is adjusted by rotat