The porphyry type deposits in southeastern Hubei area are associated with intermediate-acid supergene small intrusive bodies. With the principles and methods of fuzzy mathematics, this paper, using F-PFScluster method, has established a fuzzy cluster recognition model for information of small rock bodies reflected by geochemical parameters, thus realizing the evaluation of ore potentiality for small rock bodies and the rapid choice of target areas. This is undoubtedly of practical signifance to the exploration of ore resources.