Measuring and mapping instrument leveling structure with fixing function

The utility model belongs to the field of surveying and mapping instruments, and particularly relates to a surveying and mapping instrument leveling structure with a fixing function, which comprises a fixing plate, a lifting mechanism is fixedly connected below the fixing plate and comprises a bearing plate, a threaded column, a rotating block and a top column, and the threaded column is fixedly connected above the bearing plate; by holding the fixing plate for operation, connection and fixation, during use, an internal lifting mechanism can be adjusted, internal rotating blocks are directly held for rotation, an internal threaded column is made to adjust the height, and meanwhile, the multiple internal rotating blocks are rotated for use, so that the height of the device is adjusted for use; the problems that due to use limitation of part of surveying instruments, adjustment is not convenient enough, a supporting frame of a bottom plate needs to be adjusted and used during operation, use is not convenient en