Acetabular cup for artificial hip joint

The invention provides an acetabular cup for an artificial hip joint and relates to the field of artificial joints. The acetabular cup comprises a cup body and multiple fixing tooth rings layered on the surface of the cup body, wherein the cup body is provided with a cup top hole at the top of the cup body and a cup opening at the bottom of the cup body; an accommodating cavity is formed in the cup body; the cup top hole and the cup opening are both communicated with the accommodating cavity; each layer of fixing tooth ring comprises multiple fixing teeth surrounding the center line of the cup body and positioned on the same horizontal plane; and each fixing tooth is arranged on the surface of the cup body. Compared with the prior art, in the acetabular cup for an artificial hip joint provided by the invention, the fixing teeth are arranged on the surface of the cup body, and the dimension and angle of the fixing teeth on the surface of the cup body are gradually increased; and therefore, the acetabular cup is always kept in press fit with the acetabular fossa, and good initial fixation and long-term fixation of the acetabular cup in the acetabular fossa are realized.