Abstract: The historical and logical necessity of application of systems theory and method to agricultural regionalization was discussed in this paper. According to the specific purpose and Contents of the agricultral regionalization of China, an optimization model for the Crops distribution, including both economic and eological Consideration, was formulated. As an attempt to use the systems method to agricultural regionalization based on the available data, this model was used to make a systematic analysis and synthesis to the general distribution of Crops in the 82 counties of Hobai Province. The results obtained were as follows: 1. The optimistic scenarios of the distribution of grains and cotton production base of Hobai Province. 2. The econoomie evaluation of the land in the 59 connties of Hobai Province. 3. The optimistic scenario of the synthesizing agricultural regionalization of the 82 Counties of Hobai Province.