“衰年变法”是齐白石绘画生涯的转折点,也是他的艺术创新思维与中国画发展路径完美结合的外在表现形式。若要研究齐白石,就不能不提到他那关键性的“衰年变法”。在分析齐白石“衰年变法”的成因时,我们应从外在与内在的因素去全面地考察和分析,本文即是以从生活为本到艺术探索再到精神追求的逻辑方式,来浅述齐白石“衰年变法”的原因。 “The Decline” is a turning point of Qi Baishi’s painting career, and also an external manifestation of the perfect combination of his creative thinking of art and the development path of Chinese painting. If we want to study Qi Baishi, we can not but mention his key “change”. When analyzing the causes of QiBaiShi’s “Decline of the Year”, we should conduct a thorough investigation and analysis from the external and internal factors. This article is based on the logical way from life-based to art exploration to spiritual pursuit. About Qi Baishi “change the law of decline ” reason.