In order to clarify the current Fusarium species and the dominant species causing tomato Fusarium wilt in Tongshan,Qintong and Shuyang.12 soil samples were collected from tomato rhizosphere and the pathogens were isolated.Fusarium species were identified on the basis of morphological characteristics and ITS sequences,and their pathogenicity was also tested.Three Fusarium species,namely F.oxysporum,F.solani and F.verticillioides,were classified with the numbers of 111,32 and 7,respectively.The result of analysis of the Fusarium species distribution in different regions indicated that Fusarium oxysporum was the dominant species in Tongshan,Qintong and Shuyang with frequencies of 66%,72% and 84%,respectively.