凯恩斯主义宏观经济政策 ,在西方国家70年代前盛行一时 ,随后纷纷放弃。日本从九十年代开始投入大量财政资金用于刺激经济而收效甚微 ,却仍沿用至今。本文在简要阐述凯恩斯主义宏观经济政策理论的基础上 ,分析了日本经济所面临的困境 ,使我们更清楚地观察和认识凯恩斯主义宏观经济政策的局限性和负面效应。 Keynesian macroeconomic policies prevailed in Western countries before the 1970s, and they were subsequently abandoned. Since the 1990s, Japan has invested heavily in financial resources to stimulate the economy with little success, but still in use today. Based on the brief introduction of Keynesian macroeconomic policy theory, this paper analyzes the dilemmas faced by Japan’s economy and makes us more clearly observe and understand the limitations and negative effects of Keynesian macroeconomic policies.