Abstract: Based on the identification of China agriculture industrial cluster，the industrial linkage index，including the sensitivity coefficients and influence coefficients were introduced into the inside of industrial clusters through input-output analysis. The key sectors in agriculture cluster were found out through comparion of the data between 1997 and 2002 and measurement of the industrial linkage of China agriculture. The effect of the key sectors’ production price on other relative sectors both inside and outside agriculture cluster was calculated by utilizing the model of price alteration to provide corresponding reference for decision-makers.

Key words: lnput-output analysis, industry related analysis, price policy simulation, agriculture, industrial cluster