1, the purpose is different: the purpose of engagement is to announce that the two have decided to get married and announce the news to relatives and friends. The purpose of marriage is to formally become husband and wife and establish family relations.

2, the ceremony is different: the engagement ceremony is relatively simple, with parents and several close relatives attending, holding a small banquet or dinner, the man will give the woman a red envelope as an engagement gift. Marriage requires a banquet, inviting relatives and friends to the wedding, and conducting a formal wedding ceremony, including exchanging wedding rings and reading vows.