Probit model is applied to analyze some key factors influencing farmers’ willingness to participate in the new vocational training for farmers based on 683 questionnaires from 8 districts in Chongqing. The results show that individual and family factors significantly affect farmers’ participation will. These factors are age, family scale and years of education. Age is the most important factor, family scale is of secondary importance and years of education are the third one. Meanwhile, years of education positively affect farmers’ participation willingness; there is a negative correlation among age, family scale and this willingness. Organizer, rural economic development level and training experience have no significant influence on this willingness.