The invention discloses an environment-friendly garbage treatment device which comprises a frame. A compression groove is formed in the right side face of the frame. A change cavity is formed in the position, on the left side and the right of the compression groove, in the frame. A first inner spiral locking shaft and a second inner spiral locking shaft are arranged on the upper side and the lowerside of the change cavity correspondingly. A first sliding groove is formed in the left side of the change cavity. A sunken groove is formed in the bottom of the first sliding groove. A first guide rod is arranged between the bottom of the sunken groove and the top of the first sliding groove. A first sliding block extending rightwards is in sliding connection to the first guide rod. The outer surface of the position, at the bottom of the first sliding block, of the first guide rod is provided with a first spring ring. The extending part of the right side of the first sliding block stretchesinto the change cavity and is in sliding fit with the right side wall of the change cavity. A motor is arranged at the position, in the change cavity, in the first sliding block. Conveying shafts arearranged at the upper side end and the lower side end of the motor. A conveying cavity is formed in the position, above the change cavity, in the frame. The environment-friendly garbage treatment device is simple in structure, convenient to operate, low in manufacturing and maintaining cost, high in compression speed, high in stability and good in compression quality, sewage is drained reasonably,and cleanliness and sanitation are achieved.