Abstract: Raised the level of agricultural technology is the key to achieve the modernization of agriculture and the coordinated development of urban and rural areas. Agricultural technology comes mainly from two aspects, one is the production of new agricultural technology in city, and another is technology transferred to agriculture from non-agricultural sector. This article discusses the relationship and response in the urbanization, non-agricultural technology and agricultural technology changes through the SVAR model.It thinks that not only agricultural technology has lasting power to urbanization, but also has long-term effects on the non-agricultural technology. The short term effects on agricultural technology from China's urbanization is not obvious, but non-agricultural technology’s short-term effects on agricultural technology are obvious. Then, we should play urbanization an important role in increasing agricultural technology, advocate adaptive agricultural technology innovation, and improve the agricultural extension system, accelerating technology transfer from a non-farm sector to the agricultural.This is a way to realize of urban and rural development, improve the quality of urbanization.

摘要： 提高农业技术水平是实现农业现代化和城乡统筹发展的关键，而农业技术水平的提高主要来源于两个方面，一个是城市生产的农业新技术，再一个是非农产业技术向农业的转移，本文通过建立SVAR模型研究城镇化、非农产业技术与农业技术变迁之间的相互作用和响应关系，认为农业技术水平的提高不但是城镇化的持久动力，也会对非农产业技术产生长期作用，我国城镇化对农业技术水平的短期效应不明显，而非农产业技术对农业技术的短期效应比较明显，所以，要加大城镇化对农业技术的促进作用，倡导适应性的农业技术创新，完善农业科技推广体系，加快技术从非农部门向农业的转移，只有这样才能实现城乡统筹发展，提高城镇化质量。

关键词: 技术变迁, 城镇化, 脉冲响应, Technology Change, Urbanization, Impulse Response