Abstract: Rural revitalization is a strategic goal of the overall, comprehensive, integrated, and coordinated development of agricultural and rural areas in the new era. In the context of rural revitalization, China’s agricultural engineering needs to further innovate and expand to meet the needs of agricultural and rural area development in the new stage. Ecological agricultural engineering is a cross-discipline of agricultural engineering and agricultural ecological engineering. Focusing on ecological agricultural engineering, this research analyzed its concept and connotation and discussed the importance, future development prospects, development direction, and existing problems under the background of rural revitalization. Ecological agricultural engineering is the ecological development of agricultural engineering, which comprehensively promotes the ecological thought of traditional agricultural engineering in terms of development ideas and connotations, and expands the ecological field of agricultural engineering. Given the great demand for rural revitalization, development of ecological agricultural engineering has been proposed. Ecological agricultural engineering is a technical means to realize ecological agriculture, which can meet the developmental needs of rural revitalization, ensure the sustainable productivity of agricultural ecosystems, and promote the sustainable development of agriculture and rural areas. Ecological agricultural engineering can be regarded as a cross-discipline of ecological engineering and agricultural engineering. The importance of developing ecological agricultural engineering is mainly reflected as follows: promoting the construction of ecological civilization; supporting the high-quality development of rural industry, systematic and all-round rural revitalization; and promoting the sustainable development of agricultural and rural areas. In the future, Ecological agricultural engineering can provide an important guarantee for food security, and it is an important measure to alleviate the energy crisis, an effective path to the construction of beautiful villages, and a way to achieve prosperity. This can enrich and expand the discipline connotation of agricultural engineering to meet the needs of the new situation of rural revitalization, so it has broad developmental prospects. The development of ecological agricultural engineering will play a major role in promoting rural revitalization in China in the field of ecological development of agricultural engineering.