Based on the basic-level agricultural extension agencies and research on farmers' cooperatives in Sichuan Province, this article analyzed technology supply and demand object, type and cognition of basic-level agricultural extension agencies and farmer cooperatives by comparison, the results show that the connection of technological supply and demand situation is still not optimistic: unreasonable with technicians’ allocation, no mature with cooperatives operating mechanism , no timely with technical reserves. Finally, the paper puts forward some policy suggestions, including deeply understanding of the technological requirement of cooperative to make technological connection effective; Optimizing the external environment of the cooperative, improving the function of the cooperative technology platform; Deepening mechanism reform of agricultural extension agencies and updating technical reserves in time ;Cultivating diversified agricultural extension system, innovation in technology promotion model.