Themes of Sanqu on derisive and tease are abundant in Yuan Dynasty,and we can classify them into several kinds:1.jeer the temporal times;2.tease those people who had bad behaviors;3.intone about some special things;4.totally spoof,even with lavatorial interests.The reasons are various,which include economy,politics,authors' personality and development of the literature itself.Plentiful exaggerating techniques and dialects are used in Sanqu for the sake of derisiveness and tease.