选取我国小麦最低收购价、市场收购价、产量和粮农收入和生产效率等作为变量,以粮农收入的下限、可承受市场价格和最低收购价格的上限、供需关系、库存限制、财政支持能力的上限和国际粮价的范围作为约束条件,建立多目标模糊优化模型以探求政府对最优最低收购价的决策机制。通过分析发现,国家制定的最低收购价虽然没有使粮食种植面积增加,但是有效地抑制了粮食种植面积的减少。 Select the minimum purchase price of wheat, the purchase price of the market, the output and the revenue and production efficiency of grain and grain as the variables, the lower limit of grain income, the upper limit of the market price and minimum purchase price, supply and demand, inventory limit, the upper limit of financial support capacity And the scope of international food prices as constraints, the establishment of multi-objective fuzzy optimization model to explore the government’s decision-making mechanism for the optimal minimum purchase price. According to the analysis, although the minimum purchase price set by the state did not increase the grain acreage, it effectively restrained the reduction of grain acreage.