“西北学说”对大革命的失败具有重要的影响。文章在对“西北学说”产生的整个过程进行了回顾的前提下,对其产生和发展的历史条件进行了分析,认为“西北学说”之所以能够产生和发展的历史条件是:“西北学说”理论本身具有迷惑性、中共力量弱小、北伐具有号召力、形势所逼等。 “Northwestern theory” has an important influence on the failure of the Great Revolution. Based on the review of the whole process of “Northwestern Doctrine”, the article analyzes the historical conditions of its emergence and development and holds that the historical condition that “Northwestern Doctrine” can be produced and developed is that “Northwestern Doctrine” The theory itself is deceptive, the Communist Party’s power is weak, the Northern Expedition has its appeal, and the situation is compelling.