Master Yinshun said in his “An Ordinary Life” that from July 27th to March 35th of the Republic of China were “the most meaningful eight years in his life as a monk” and determined “all the eight years in the future”, “the most rare eight years” in my life. These eight years coincided with the Second Sino-Japanese War, also known as the Anti-Japanese War. What this article wants to explore is: Why did Master Yinshun have the “most rare eight years” during the Anti-Japanese War when the country was invaded by foreign enemies? Where has he lived during these eight years? Who have he met in these places? How was the interaction with these people? As a generation of Buddhist thinkers, the focus of this article is: What books did Master Yinshun study during the Anti-Japanese War? How many Buddhist scriptures did he talk about? What articles and books have been written and published? What is the status of these works in his lifelong research achievements? This article discusses: Master Yinshun’s behavior during the Anti-Japanese War, Master Yinshun’s reading and preaching during the Anti-Japanese War, and Master Yinshun’s creations and publications during the Anti-Japanese War, hoping to present Master Yinshun’s relevant teachings during the Anti-Japanese War Activities, in order to explain why these eight years are so important to Master Yinshun’s life