Adjustable surveying and mapping instrument support for complex terrains

The utility model discloses an adjustable surveying and mapping instrument support for complex terrains, which comprises a base, an auxiliary supporting mechanism is arranged in the base, a fixing mechanism is arranged on the top surface of the base, a pressing block and a rubber pad can move upwards through the arrangement of the fixing mechanism, and a movable plate is pushed to move under the action of a spring. According to the surveying and mapping instrument, through arrangement of a driving mechanism, a worm gear rotates to drive a first rotating shaft to rotate, an inner threaded cylinder moves outwards, a threaded column is rotated according to the height of the ground, four sets of anti-skid blocks make contact with the ground, and a base is kept in a horizontal state, so that the surveying and mapping instrument body can be more stable during surveying and mapping, and surveying and mapping data are more accurate; and the gear is meshed with the toothed plate, so that the lifting rod can move up an