This article interprets the character and personality of the heroine of Anna Karenina, one of the Lev Tolstoy's masterpieces, indepthly from the percpective of character study in psychology and analyses Anna's marriage and perfectionism that generated from her also points out that perfectionism--the biggest character flaw of those characters--is the main factor that lead her to a tragical life when campare with some social sociological point of view, this article discusses the realistic significance of Anna's tragic character. In recognition of the independence of literature and the guiding role of it,this article expands the way of literature critism and provides an alternative for how the text is interpreted. It will also give those who are in a relationship some inspirations.