In China, Christmas is primarily a secular and commercial holiday. Consequently, 圣诞老人 (shèngdàn lǎorén) functions differently than he does in the West.
Commercial Icon: Santa Claus is a powerful marketing tool. Malls, restaurants, and online retailers are decorated with his image starting in November to drive holiday sales. He is a symbol of consumerism and festive fun rather than a figure of deep-rooted tradition.
Secular Festive Figure: For most Chinese people, particularly young adults, celebrating Christmas is about gathering with friends, exchanging gifts, and enjoying the festive atmosphere. 圣诞老人 is a part of this atmosphere, similar to how jack-o'-lanterns are for Halloween—a fun symbol of a specific day.
Comparison to Western Santa: Unlike in many Western cultures where Santa Claus is a central part of childhood belief and family tradition (leaving cookies, writing letters), his role in Chinese families is much more casual. While some parents may tell their children about Santa, the traditions are not as widespread or culturally ingrained. He is a fun story, but not necessarily a core belief. He is not associated with any native Chinese folklore or legend.