The utility model discloses a kind of transversely arranged
flush toilet water tank button structure and the
flush toilet water tank of applying it, one kind of transversely arranged
flush toilet water tank button structure includes tank cover and drain button, tank cover is provided with button hole, tank cover is arranged with pivot along front-back direction, the drain button is transversely arranged in tank cover top by pivot, the direction of the drain button around pivot restriction swings on button hole. By being arranged with pivot along front-back direction on tank cover, and by pivot, drain button is transversely arranged in tank cover top, so that drain button arrangement can make full use of the transverse length of the tank cover of flush
toilet water tank, so that drain button has greater operating interval, so that user is more convenient to press, can cope with all kinds of crowd use.