Research achievements of the ASTP Policy-Oriented cannot generate directly economic benefit, social benefit and ecological benefit. It would realize benefit of ASTP only if the outputs can be transformed practical productive forces. In this paper, the mechanism and pathway of achieving benefit of ASTP is analyzed deeply based on the logical framework model. Then the empirical studies shows that the inputs (research investment) have positive correlation with outputs (research achievement), extension and outcomes (changes in productivity). Although the inputs have a certain influence to agricultural economics, it mainly affects indirectly agricultural development by research achievements and extension. Therefore, the benefits of ASTP should not be evaluated according by inputs/outputs methods. We must analyze and assess the anticipated chain of cause/effect relationships of ASTP based on the program “theory-driven” approach. It can promote agricultural research and extension projects to integrated closely, at the same time the benefit of ASTP can be improved greatly.