中文摘要：

本文通过对我国私部门农业研发投资普查数据的分析，重点研究了2000年以来我国私部门农业研发投资总量与结构变化。研究表明，2000年以来，我国私部门的农业研发投资以年均27％的速度增长。但私部门的农业研发投资是有选择性的，知识产权容易保护部门是企业农业研发投资的主要领域；在私部门研发投资快速增长而自身又缺乏研究能力的条件下，常常借助委托研发和骋用兼职研发人员来提高其研发能力；虽然私部门研发投资不断增长，但目前我国绝大多数企业仍主要依靠公共部门的技术从事生产与经营活动，私部门农业研发投资的增长具有巨大的潜力。政府应加大知识产权的保护力度，充分调动企业参加农业研发的积极性。为企业研发投资创造条件；同时政府应把公共部门农业研发投资的重点逐渐转向基础研究和应用基础研究以及知识产权还不容易得到保护的农业科技领域，促进国家农业科技创新体系的建设。

英文摘要：

Based on a national wide census data on private agricultural research investment, this study analyzes the trends of private agricultural research investment and its focused areas in China since 2000. The results show that annual growth rate of private agricultural research investment reached 27% in 2000 - 2006. Investment from private sector mainly focuses on the areas where intellectual property rights are relatively easier to be protected. Under current situations of rapid growth of investment and lack of research capacities, private investment is also often arranged through commission research and/or hiring part - time researchers from public sector. Despite its rapid growth in research investment in recent years, production of business of most enterprises still highly relies on technologies from public sector. The potential growth of private agricultural research investment is high. Government should enhance itsefforts on the ＂protection of intellectual property rights and provide better investment environment to further raise incentive of private sector＇s investment in agricultural research. Meantime, in order to facilitate the development of national agricultural technology innovation system, the priority of public research investment should move to basic and applied basic researches and focus on agricultural technologies that have difficult to protect their intellectual property rights.