The purpose of marriage certificate notarization is to notarize and prove the legitimacy and authenticity of a husband-wife relationship. This is a document that needs to be provided in some specific circumstances, such as immigration, visa, property inheritance, divorce, application for social welfare, etc., may need to provide notarized marriage certificates to prove the existence of husband and wife relationship. Through notarization, the marriage certificate is officially recognized and has legal effect, ensuring the rights and interests of both husband and wife.