The continuous innovation and effective promotion of agricultural science and technology is one of the important ways for Sichuan to realize the leaps from large agriculture province into the strong province of agriculture. This paper analyzes the new requirements of technological innovation and extension put forward by building strong agricultural provinces in the new era. Based on summarizing and explaining the current situation of agricultural science and technology innovation and extension in Sichuan，this paper puts forward some policy suggestions for Sichuan to improve agricultural technology innovation and extension，and promote the construction of strong agricultural provinces.