It builds the grey relational grade analysis model between the rural financial development and the rural economy development,carries on positive analysis to the relationship between Fujian rural financial development and economic growth and uses Granger causality test their causal relation. This indicates that growth of agricultural loans outstanding is the Granger Cause to the growth of Integrate forestry output value, sales revenue of the industrialized operation of agriculture organization and production value of agricultural products as raw material to the industrial enterprise.The rural economy development is not the Granger Cause to the rural financial development.