Agricultural modernization is an important part of national modernization. Informatization is the inevitable trend of economic and social development. Now informatization is no longer just a way to realize agricultural modernization, but as a new type of productivity, becomes one of the core elements of agricultural modernization, is the only way for the construction of agricultural modernization with Chinese characteristics. This paper calculates the development level of the informatization and agricultural modernization in central region in China, and the synergy degree of them. At last, based on the results of this study and real situations, some suggestions are put forward accordingly.