在春节用in还是on都可以。指在春节这个阶段用in和at，指春节那一天用on。in the Spring Festival：指在春节期间，onthe Spring Festival：指在春节当天。
在春节精选用法例句
Short plays in the Spring Festival Gala made the audience laugh.
春节晚会上的电视小品博得了大家的阵阵笑声。
Spring rolls are usually eaten in the Spring Festival, hence its name.
这道菜经常在春节的时候吃，所以因此得名春卷。
In the evening, we conducted an indispensable link in the Spring
Festival - the fireworks.
晚上，我们进行了春节中一个必不可少的环节节——放烟花。
On the Spring Festival couplets, good wishes are expressed.
人们在春联上抒发美好的远景。
The Chinese people love to stick couplets on the Spring Festival,which are
also written on red paper。 春节时，中国人喜欢贴春联，春联也是用红纸写的。
春节英文短语
Blessings on the Spring Festival 春节祝福
The Taboos On Spring Festival 春节禁忌
In the Spring Festival dumplings 在春节吃饺子
consumption in the Spring Festival 春节消费
the Spring Festival in China 中国的春节