The interference of market economy, the change in concept of human values, the shake of traditional values and the formation of new standards are reasons leading to the influence of postmodern thought on Vietnamese literature. The kind of character "debris" is a creation that helps postmodern writers' sense clearly expressed. It is impossible for readers to understand and explain the characters built with "debris" personality. With this kind of character, writers create the reality in complexity, opposing central factors and giving prominence to reflexivity, fragmentation and interruption.