Based on the investigation of 10 counties which have advantages of grain production in Henan province, this paper empiricaly analyzes the investment direction, investment effect form three levels which are the grain farmers professional cooperative tissue level, the company of foodstuff transaction level, and the market-leader enterprises of grain industry level,and points out some problems existing in the financial support for grain industrial organization such as the financial support for grain farmers professional cooperative tissue is not enough, the goal of financial support for the company of foodstuff transaction is not clear ,and the financial support for the market-leader enterprises of grain industry is inefficient in some extent. Then it designs the optimized investment model of financial support for grain industrial organization which should lay heavy stress on supporting for the grain farmers professional cooperative tissue, and gives corresponding policy suggestions.