The main reason why we concentrate on the fuzzy c-means that the methodology of most studies and applications that use fuzzy clustering fuzzy c-means, and therefore the fuzzy c-means should be considered as the main technique of clustering in general, regardless of whether someone is interested in methods of fuzzy or no. We claim to be noted that the entropy-based method is better than traditional methods, but we believe that the method of fuzzy c-means to be complete by adding the method of entropy-based method by Dunn and Bezdek, because we can observe the properties of these two methods more deeply by the contrast second.