区域自给自足一般有助于提高粮食产量 ,我国二十世纪六七十年代为此而实行了粮食的省长负责制。本文运用兼顾安全和效率的方法 ,对这一政策的短期和长期效果进行分析 ,肯定了短期内保障安全、长期中注重效率的区域自给政策在经济上的合理与可行 ,并根据此结论 ,进一步提出了区域自给自足在整个粮食经济良性循环中的发动机作用。 Self-sufficiency in the region will generally help to increase grain output. In the 1960s and 1970s, China implemented the governor’s responsibility system for food. This paper analyzes the short-term and long-term effects of this policy by considering both safety and efficiency. It affirms that in the short term, the regional self-sufficiency policy of ensuring safety and long-term efficiency is economically reasonable and feasible. Based on this conclusion, Proposed the regional autarky in the virtuous circle of food economy engine role.