A typhoon track can be considered as a curve on a two-dimension plane. According to the similarity deviation of two typhoon track curves, their numerical similarity and geometrical similarity can be estimated. There are still some difficulties and limitation when the original typhoon data are applied to the formula of similarity deviation. Based on the principle of similitude deviation, a brand new algorithm is designed to calculate the similar degree between two typhoon tracks. According to this algorithm, the control points on the two typhoon track curves are picked up, the distance between corresponding control point on the different curves and the direction of the distance deviation are calculated. As a result, the similar degree of two typhoon track curves can be easily estimated but need to calculate the similar deviation in one direction. Compared with the source typhoon track, the most similar destination typhoon track can be retrieved from the historical typhoon database by means of this new algorithm.