ZHU Xi, a prominent Confucian scholar, also delved into the teachings of Taoism. This article examines ZHU Xi's views on Laoism by analyzing his interpretations of Lao Zi's ideas, his relationship with Lao Zi, and how Laoism fits into ZHU Xi's philosophical system. The goal is to highlight the strength of Laoism and its importance in ZHU Xi's philosophy.