Abstract:Agricultural scientific research institutes are the important force of agricultural science and technology policy execution as well as it’s implementation effect.The study on the deep reason, changing law and policy effect of the reform is of great significance to further improving agricultural science and technology policies based on the perspective of agricultural scientific research institutes.Taking the policy change of agricultural scientific research institutes as the main line and using the methods of classifying, experience summarized and investigating , this paper analyzed the evolution law,implementation effect of the national agriculture science and technology policy ,the plight of agricultural scientific research institutes’ development ,and the new situation which the development of agricultural science and technology was faced with.Finally it put forward some suggestions on how to promote the reform of agricultural science and technology policies.