行政机关说明理由解释其决定的合法性是宪法的一个重要原则,是依法行政、理性行政的必然要求。对于行政法规,行政机关可以不说明理由;而对于行政规章,则应当说明理由。行政行为说明理由的主体应该是行政主体,方式以书面说明为原则,口头说明为例外。 It is an important principle of the constitution to explain the legitimacy of its decisions by the administrative organ and is the inevitable requirement of administration by law and rational administration. For administrative regulations, the administrative organ may not state the reasons; and for the administrative regulations, it shall state the reasons. The main body of the justification of the administrative act should be the main body of the administration. The method is based on the written explanation and the verbal explanation is the exception.