Abstract: In order to solve the feature points location problem of describing the month appearance, a kind of feature location algorithm was proposed. It realized the preliminary feature point location through establishing the affine relationship between lip gray scale image and lip feature point vector. Based on it, the local texture model is used to adjust every point's accurate location. The feature point location algorithm the paper proposed overcomes the shortage of traditional local-texture-model-based algorithm, which may get in the local convergence. The paper proposed a kind of local texture model which is suitable to describing the lip appearance, and which improves the accuracy of feature point location.