The model 2CM cultivators of potatoes adapt to different areas、the natural environments、geographical features、the climates、soils and agriculture demands, we apply the advanced technology to cultivator of potatoes, test their mechanical performance again and again, they are successful improved minitype. The 2CM series cultivator of potatoes match the tractors of minitypes, the functions include collection ditching、the soil applying fertilizer、sowing seeds and covering, they may integraly complete fertilizing and seeding.