英语海报春节主题的内容如下。
Chinese Spring Festival celebrating the end of winter and the warmth of spring. It began in the last day of the lunar year end in the 15th day of lunar New Year, also is the Lanter Festival.
During the Spring Festival, people use red lantern and Spring Festival couplets to decorate their house,put on all kinds of colored clothes. They often visit their friends and relatives or together eat dumplings, fish, meat and other yummy food.
The children are looking forward to receiving red envelope money. And together they set off fireworks,with joy and excitement. There will be dragon and lion dance and some other carnival activities on the street.
CCTV will held the grand Spring Festival gala and everyone will sit in front of the TV to watch it.
翻译：中国的春节庆祝冬天的结束和温暖春天的来临。它开始于农历年的最后一天，结束于农历正月十五，也就是元宵节。在春节期间，人们用红灯笼和春联装饰房子，穿上各式各样的彩色衣服，经常拜访亲戚朋友或聚在一起吃饺子、鱼、肉和其他美味的食物。
孩子们盼望着收到红包的压岁钱，他们一起放烟花，相互玩的跟开心。大街上有舞龙、舞狮和其他一些狂欢活动，中央电视台会举行盛大的春节联欢晚会，大家都会坐在电视机前观看。
Spring Festival is a traditional festival in China and some Asian nations. Because legend has it that the beast is afraid of red, afraid of fire and afraid of sound, so people will have couplets, firecrackers,gongs and drums and other customs.
Different periods, different regions, different ethnic customs are not the same.
翻译：春节是中国及一些亚洲民族一个古老的传统节日。因为相传年兽怕红色，怕火光和怕响声，所以人们便有贴春联、放鞭炮、敲锣打鼓等习俗。不同时期、不同地区、不同民族的习俗都不相同。
海报：poster
因此春节海报可以译为：posters for Spring Festival