Abstract: With the input-output data from WIOD, this paper estimates 34 countries’ financial support upstreamness through properly revised Antràs et al（2012）,then analysis the effects of financial support upstreamness to high technology products export from total and subsection level. The results show that: firstly the effects of financial support upstreamness to high technology products export like inverse U, China’s financial support upstreamness is too high, which is near the negative threshold; Secondly institutional geographic advantage and being a neighbor of larger importing country do good to a country’s high technology product export, the near sea geographic advantage doesn’t have significant effects to high technology product export; Thirdly economic development ,business environment and natural resource have positive effects to the high technology product export，but the natural resource is not a" long dependable " factors, the impacts of economic development to high technology product export are declining, the impacts of business environment to high technology product export are becoming stronger.