Abstract: The development of modern tobacco agriculture is inseparable from the modernization of tobacco producing subject.On the basis of analyzing the connotation and characteristics of tobacco growers' professionalization,this paper employed factor analysis to establish an evaluation index system and applied it to tobacco growers in Guizhou Province.The results showed that:tobacco growers' professional level is not high in our province,with only about 30% of tobacco growers being able to participate in the assessment directly.The main factors constraining tobacco growers' professionalization are low comparative benefits of tobacco planting,difficulty in land circulation,lack of credit funds and good tobacco growers' security mechanism.In view of the above,some suggestions were put forward:to increase tobacco growers'income literally,guide tobacco field circulation carefully,actualize the pilot project of credit support service,establish and perfect guarantee system of professional tobacco farmers.