An artificial hip joint with a composite ball head includes an artificial acetabulum (1) and a composite ball head (2)； wherein an internal surface of the artificial acetabulum (1) cooperates with an external surface of the composite ball head (2), and the composite ball head (2) can rotate within the artificial acetabulum (1)； the internal surface of the artificial acetabulum (1) is directly in contact with the composite ball head (2) without a liner therebetween； the composite ball head (2) comprises a metal ball head (22) and a non-metallic shell (21) wrapped around an external surface of the metal ball head (22). For the composite ball head (2), the metal ball head (22) is wrapped with a non-metallic shell (21), which has large supporting force capability, has strong bearing capacity, effectively reduces the contact stress of the non-metallic shell (21), is stable and reliable, and is not easy to be damaged. Liner is not used in the artificial acetabulum, so that the size of the composite ball head (2) can be increased, thereby increasing the joint mobility, reducing the collision between boundaries of the femoral stem and the acetabular shell, reducing the risk of dislocation of the artificial acetabulum (1) and the composite ball head (2), thereby effectively extending the service life of artificial joints, and enhancing the use of artificial joints.
