This study mainly demonstrated the methods of reconstruction of acetabulum in total hip replacement in cases of acetabular dysplasia.Management of these cases proceeds on the preoperative plan and intraoperative assessment of Bone loss.Reconstruction of the acetabulum can be achieved by:Structural grafts are required whenever the bone stock of the acetabulum is compromised and cannot provide rigid cup fixation, here the planned cup must have at least 50% host bone contact.There are 3 types for impaction Bone grafting for acetabular reconstruction.