根據越南憲法，國家主席職務如果出缺，由副主席暫時代理，到國會選出新一任主席為止。新主席繼續做上一任剩低嘅任期。
According to the Constitution of Viet Nam, if the office of President vacancies, the Vice President shall temporarily act in his place until a new President is elected by the National Assembly. The new President will continue for the remainder of the previous term.