The resistances of 50 Chinese cabbage varieties planted in Hunan against the clubroot disease that naturally occurred in fields or induced by artificial inoculation at seeding stage in greenhouse and tissue culture room were investigated with one resistant variety and one susceptible variety as controls. The results showed that there was obvious difference among the tested Chinese cabbage varieties in their ability to resist clubroot disease. Seven varieties, accounting for 14%, that is Aijiaoxiaobaicai, Aijiaobai, Youqingtiancaixin, Qiulv60, Shantoutianbaicai, Zhongqiqingcai 605 and Degaofugui, were highly resistant to clubroot disease; seven varieties, accounting for 14%, were resistant to clubroot disease; three varieties, accounting for 6%, were tolerant to clubroot disease; and 20 varieties, accounting for 40%, were susceptible to clubroot disease as identified both by natural and artificial methods. But for the remaining 13 varieties, the resistances identified by natural methods were not consistent to those by artificial method.