Abstract: Development stages of agriculture and rural areas, and agricultural engineering was analyzed．In light of significant needs of rural revitalization, it was proposed that China's agricultural engineering should be adjusted towards more modern and comprehensive agricultural and rural engineering with richer connotations．Modernization of agriculture in China has not yet been fully achieved, and traditional agricultural engineering technology will continue to play an important role．At the same time, social demand for rural revitalization and equal emphasis on development of agriculture, rural areas, and farmers requires that one of the key service areas of agricultural engineering was construction of modernized rural areas, and agricultural and rural engineering will have great potential．By comparing development patterns of agricultural engineering worldwide with China's current development stage, and taking into account essence of rural revitalization, policy context, and social demand dynamics, a practical necessity for strategic adjustment of agricultural engineering in China toward agricultural and rural engineering have been demonstrateded．Connotation of agricultural and rural engineering is to emphasize development of farmers and rural areas on basis of valuing agricultural development, and to strengthen support at originally weak rural service level．According to strategic needs of agricultural and rural development in China, development focus of agricultural engineering 3.0 is as follows: firstly, agricultural production is primary task, and it is necessary to focus on developing agricultural machinery informatization, modern facility agriculture, high standard farmland construction, etc., to ensure food security and supply of important agricultural products．Secondly, rural construction is an important task, and it is necessary to focus on developing ecological agriculture projects, rural construction projects, etc., to improve quality of rural environment, and promote equal development of infrastructure construction between urban and rural areas．Thirdly, prosperity of farmers is an important goal, and it is necessary to focus on developing agricultural product processing projects, promoting agricultural industry and economic development, and increasing farmers' income．