The utility model provides a minimally-invasive adjustable interbody fusion cage for spondylolisthesis. The minimally-invasive adjustable interbody fusion cage comprises a fusion cage body, the fusion cage body comprises a supporting portion and an expansion portion, the supporting portion is provided with an adjusting hole, the expansion portion comprises an upper open expansion body and a lower open expansion body, internal threads are arranged on two opposite surfaces of the upper expansion body and the lower expansion body, vertebral body contacting surfaces are arranged on the upper surface of the upper expansion body and the lower surface of the lower expansion body, fixing teeth are arranged on the vertebral body contacting surfaces along the length direction of the fusion cage body, more than one vertically corresponding bone grafting hole is formed in the upper expansion body and the lower expansion body, an expansion body is positioned between the upper expansion body and the lower expansion body, the diameter of the expansion body is gradually increased from one end to the other end, and an external thread matched with the internal threads of the fusion cage body is arranged on the outer surface of the expansion body. By the aid of the minimally-invasive adjustable interbody fusion cage, restoration of a slip vertebral body is facilitated through expansion of the expansion body, and normal sequences and mechanical properties of lumbar vertebrae are recovered.