Abstract: The extramarital affair,as a social problem and a literary theme,has been given extensive interest and profound discussion since late 1970s.Writers first evade its descriptions,then made a breakthrough in the descriptions,face up to it and come to find that it will be expelled.These descriptions are at different levels and show different inclinations.Not only do they carry forward the anti feudal traditions handed down from May Fourth Movement,but also include introspection on the ethical situation under n...