Abstract: To effectively expansion the amount and data coverage about current 3D face databases,a sample expansion algorithm based on sample resample was presented.First,the raw face samples were divided into patches to form the organ sample sets.Then the new face sample could be constructed by picking up organs from different set and assembling.To guarantee these organs can be seamless merged together,the shape stitching method based on TPS and the texture stitching method based on differential operator were presented.Resultsdemonstrate that the proposed method has good performance on sample expansion,and the effect of algorithm can be improved by the expansion sample set.