The invention discloses an efficient stabilized soil stirring main machine, and belongs to stirring equipment. The efficient stabilized soil stirring main machine structurally comprises a stirring tank. A stirring device is arranged in the stirring tank, and a transmission device is arranged at one end of the stirring device. The stirring device comprises two stirring shafts arranged in parallel, and stirring blades are evenly distributed on the stirring shafts. Each stirring blade set includes two stirring blades which are connected through a stirring arm, and the stirring arms are installed on the stirring shafts through long holes formed in the middle portions of the stirring arms. The transmission device comprises two shaft-mounted speed reducers and synchromesh gears. The efficient stabilized soil stirring main machine is reliable in work; while the size of a tank body is reduced as much as possible, a high material filling rate can be guaranteed; the gap between the stirring blades and the side wall of the stirring tank can be adjusted, and therefore production stagnation caused by the lack of accessories will not occur.