Abstract: Development of agricultural mechanization in hilly and mountainous areas should be based on the characteristics of hilly and mountainous areas and follow inherent economic law.Core restrictive factors and support of agricultural mechanization development in hilly and mountainous areas were expounded.Ideas，major initiatives and experience of agricultural mechanization development in hilly and mountainous areas of Chongqing city were summarized.It provided reference for development of agricultural mechanization in hilly and mountainous areas of China.