Data mining lets handle and classify great amounts of data, one common task of data mining is clustering, Fuzzy C-Means is a data mining clustering fuzzy technique based on classic C-Means algorithm. Fuzzy C-Means assigns a membership grade to each data inside each cluster and as a result a data cans partially belong in more than one group. Fuzzy CMeans is used in data classification, bioinformatics, economy and other knowledge areas.