North-seeker mounting platform

The utility model relates to an erecting floor of a north-finding instrument, which solves the technical problem that a prior leveling platform can not satisfy vibration damping demands during the transportation of the north-finding instrument. A vibration damping device and a rigid supporting device are arranged between a bottom base and a leveling device, and a shifter is arranged on the bottom base; the rigid supporting device comprises at least three top rods and three regulating pieces, and the top rods and the regulating pieces are evenly distributed along a circumference; the shifter comprises a regulating handle and at least three regulating wedge faces which are evenly distributed along the circumference; the leveling device comprises an inner ring, a middle ring, an outer ring, a leveling knob, and a stable spring connecting the outer ring and the inner ring; the both ends of the stable spring are connected with the outer ring and the inner ring, the included angles between the extending direction o