Tess of the D’Urbervilles was written by Thomas Hardy who was a famous critical realistic writer at the turn of the 19 thcentury in England.Tess of the D’Urbervilles is the most influential one of all his works.The novel describes a tragic life about abeautiful girl after disgrace.This paper analyses what cause Tess’ s tragic life.The first part is an introduction of Tess of the D’Urb-ervilles and its writer Thomas Hardy.And then is the analysis on the causes of her tragic life —characters of Tess,Society Influ-ence and influence of Pessimism & Fatalism of Hardy.Though Tess fought with the society,as a common person she is helpless atthat time.In the end,she turned out to be the sacrificial victim of society like all other things which disobey the morality and ethic.