第57窟的观世音菩萨，在众多的唐代菩萨形象中，这尊观世音画像是最佳精品之一。菩萨体态婀娜，肌肤光洁细腻，长目细眉，唇红鼻直，文静典雅，姣美妩媚。沥粉堆金的宝冠佩饰和淡朱晕染的肌肤使他显得与众不同，华贵富丽。
The Bodhisattva Avalokitesvara in Cave 57. Among the numerous Bodhisattva images of the Tang Dynasty, this Avalokitesvara portrait is one of the best masterpieces. The Bodhisattva has a graceful posture, smooth and delicate skin, long eyes and thin eyebrows, red lips and a straight nose. She is gentle, elegant, charming and alluring. The headdress and ornaments with gilded powder and the skin tinted with light vermilion make her unique, luxurious and magnificent.