Modern morals are characterized by the loss of moral bottom line,which causes the inefficiency of morals in ruling human being′s behavior and leads to the moral crisis in modern society.

In the market-living world,fidelity has been regarded as modern society s "moral minimum",because the economic system of modern society and the value realization of the individual will lose protection beyond the "moral minimum".

Faced with social reality,their moral psychology is twisted and unbalanced and their moral behaviors are unregulated.

Freud s Psycho-analysis theroy at aspects of moral psychology.

The basis of justice moral psychology is the attitude which people react when they themselves or others are treated unfairly.

On the contribution of Freud s theory of psychoanalysis to moral psychology;

It is the contemporary mission for moral psychology to do some research on how to correctly treat and interpret these conflicts, whether or not find national moral value with consistent and unchangeable characteristics in this age,and how to rationally explore and recognize the scientific rules of constructing mainstream moral value.