Abstract: Orthopedic patients often have some degree of skeleton damage or deformity.At present,both Total Hip Arthroplasty and Total Knee Arthroplasty are familiar prosthetic orthopaedics operations.Aiming at quickly repairing the defected femur models,a new method was proposed in this paper.Firstly,morphological parameters on undamaged regions of the target femur model were calculated.Next,through correlation analysis of these parameters,the best matching sample model in the sample library was searched,whose corresponding region was then copied to replace the defected region of the target femur model.Experimental results showed that the proposed method could efficiently repair the defected region of the target femur model to the normal shape and thereby the anatomically suitable three-dimensional model was obtained,which was particularly important for orthopaedic surgery and prostheses design.