This paper analyses the relationship between agricultural infrastructure investment!and economic growth in China from 1985 to 2004 by using unit root test,co-integration and granger causality test.The result of the analysis shows that both of the time series have co-integration relationship and could compute the regression equation.Its main reason is that agricultural infrastoucture investmeinvestment is coordinate with economic growth for long time.Measure which enlargal the agriculture infrastructure inve...