Sustainable agricultural development is an important factor in ensuring the national security of any state, and assessing the effectiveness of government regulation is one of the elements of agrarian policy. A research of the problems inherent in the modern stage of government regulation of the agricultural sector, as well as the possibilities of solving them through international cooperation between universities of different countries. In carrying out the research, both general scientific and special methods of scientific knowledge were used: scientific abstraction, dialectics, induction and deduction, analysis and synthesis, detailing and generalization, system, comparative, statistical and factor analysis, economic and mathematical modeling. The analysis of approaches to state support for the agricultural sector in different countries confirmed its objective need and importance for the sustainable development of the economy. A model is proposed with the help of which it is possible to assess the effectiveness of agrarian policy by managing the development of the support subject through the ratio of extensive and/or intensive factors. It was concluded that such an approach could be used to optimize the funds allocated for state support in the framework of regional programs. A conclusion was drawn on the need and possibility of international cooperation of regional universities for joint research to ensure the sustainable development of the territories.