Abstract: Agricultural informatization is an important part of national economy,rural economy,social informatization,and Four-zation Simultaneous Development of 18th National Congress of the Communist Party of China. But there are lack of quantitative research and policy recommendations between agricultural informatization and urbanization. The paper is for the first time to analyze the causal connection between agricultural informatization and urbanization under Grainger Causality Test Method,and find that there is an interrelationship of advance and delay between agricultural informatization and urbanization,which is very helpful to promote the rural economic development and make a good use of informational resources.

Key words: Agricultural informatization