乐山大佛通高71米，开凿于唐代开元元年（713年），于贞元十九年（803年）完成，是世界现存最大的摩崖石像[1]。根据西南民族大学民博研究院院长雷玉华的介绍，这座古老的佛像因长期风化与修复等原因，外观持续发生变化。雷玉华表示："乐山大佛不仅脸不停变化，身体不停变化，甚至不同时期高矮胖瘦都不一样"[1]，形如川剧变脸般令人惊奇。
四川在中国佛教石窟中占据突出地位。2021年调查数据显示，四川现存石窟寺2134处，数量居全国第一位，超过中国总量的三分之一[1]。最新考古研究发现乐山大佛实际上身处于一个没有顶的石窟里，前壁已崩塌[1]。这一发现改变了对乐山大佛结构的传统认识。从文化延续的角度看，四川通过这些石窟造像，将中国大规模连续开窟造像的时间向后延续了五百年，从唐宋时期延续至南宋[1]，展现了悠久的佛教艺术传统。
The Leshan Giant Buddha, standing 71 meters tall and carved into a cliff face during China's Tang Dynasty, continues to transform its appearance over the centuries, much like the quick-change artistry of Sichuan opera.[1] Excavation began in 713 CE and was completed by 803 CE, making the colossal statue the world's largest existing rock-carved Buddha image.[1]
According to Lei Yuhua, director of the Institute of Ethnic and Cultural Studies at Southwest Minzu University, the Buddha's constantly shifting visage reflects the combined effects of weathering and restoration efforts.[1] "The Leshan Giant Buddha keeps changing its face like Sichuan opera," Lei explained, noting that "not only does the face change continuously, but the body transforms as well—its proportions, weight, and height differ across different periods."[1] Recent archaeological research has revealed that the statue actually resides within a roofless cave structure whose front wall has collapsed over time.[1]
Sichuan province's prominence in Buddhist stone carving extends far beyond this single monument. Survey data from 2021 showed that Sichuan is home to 2,134 surviving cave temples, the highest number in China and accounting for more than one-third of the nation's total.[1] Archaeological studies have further demonstrated that Sichuan extended China's period of large-scale continuous cave-temple construction by five centuries, stretching from the Tang and Song dynasties through the Southern Song period.[1]