the christmas day is the christianity world greatest holiday.why can decide as december 25 christmas day? because december 25 is jesus's birthday. the westerner take red, green, white tricolor as the christmas color. what is red is the christmas flower and the christmas candle. what green is the christmas tree. what red and white intersection is santa claus, he is the character who the christmas day moves most receives welcome. in the west, acts santa claus is also one kind of custom. the christmas song mainly has three, one is "christmas eve"; one is "listens, angel newspaper good news"; third is "bell makes a sound dingdong". the foreign country's christmas day is equal to china's spring festival is equally important.