Contemporary China is in a critical period when a new moral system needs to be established. As the foundation and important part of harmonious culture, the construction of new moral system is closely related to the goal and task of building a harmonious socialist society.

China is a "moral power". China people are also accustomed to moral life, and have developed the thinking habit of judging people and things, distinguishing right from wrong, distinguishing true from false, and distinguishing good from evil. However, at present, China society is in a period of moral chaos. Due to the diversity of people's value orientation, the evaluation of moral values is also varied. A scholar once described it like this: "In terms of value orientation, it shows that the dominant value lacks the power to guide people's behavior;" In practice, due to the embarrassment of various value orientations, people lack moral basis in behavior choice, so there is moral deficiency in practice. This situation makes people not only pursue and affirm their own social behaviors, but also demand and desire others' behaviors. In action, there is tolerance and understanding of one's own immoral behavior, as well as approval, understanding, non-participation and non-cooperation of others' moral behavior. Therefore, when immoral behavior appears, people criticize and attack it, but when others and society need to show their virtue behavior, people often show indifference to moral consciousness and lack of responsibility for moral behavior. " Compared with most people in society, this passage vividly depicts the "confusion" actually existing in the ethical thought and moral life of contemporary China people.

People's sociality determines that people must be bound by moral norms. Generally speaking, people's behavior norms in society are mainly manifested in three categories: first, legal norms, which are forbidden and rigid norms, and anyone who violates them will be punished; Second, although moral norms are divorced from the customs, practices and taboos of all ethnic groups, they are not mandatory, but flexible norms; The third is institutional norms, which are rigid and flexible, and can be prohibited or advocated. These three norms guarantee and regulate each other, and social stability can be guaranteed. Among the three norms, the role of moral norms can best measure the degree of civilization of a society, that is to say, if moral norms play a greater role in a society, then the degree of civilization of this society will be higher. This also reminds us that if China wants to build a prosperous, strong, democratic and civilized country, it must devote itself to moral construction and establish the moral value standard in the primary stage of socialism to guide people's thoughts and behaviors.

In today's society, due to the diversity of people's value orientation, people are in a social environment with double or multiple moral values. People will have different views and attitudes towards any social phenomenon or individual behavior, which will inevitably lead to the disorder of moral evaluation, and then aggravate the disorder of moral value orientation. Most importantly, moral evaluation has the consequences of multiple values. Using moral evaluation to interfere with social life and achieve the purpose of promoting good and eliminating evil and purifying social environment is not only difficult to achieve, but also makes people lose confidence in moral evaluation, lose interest in it for a long time and finally give up moral evaluation. Therefore, it is particularly important and necessary to establish the moral value standard based on the core value system.

Throughout history, the moral evaluation of every society has its core content, that is, the embodiment of the core value system. Although there are dross in China's traditional moral heritage, there are also excellent elements. For example, traditional morality emphasizes the distinction between righteousness and benefit, values the principle that the overall interests of the country and the nation are above all else, and pays attention to strengthening the spirit of self-discipline. The Chinese nation has always maintained unity and unity through hardships, which is closely related to adhering to the value principle that the overall interests of the country and the nation are above all else. In the west, although there is no special discussion on morality, it is included in the philosophy discipline, but its core part is also "everyone for me and I for everyone". When explaining the core issues of morality, Chinese and western cultures tend to be consistent. For example, the moral core of Confucius is "benevolence", which means "think not only of yourself, but also of others". The basic principle of interpersonal communication generally advocated by western society is "Don't do to others what you don't want others to do to you".

Morality is not a constant, it is relatively stable, but it also changes with the changes of productivity, material basis and political system. At present, our country is in the transitional period of old and new morality. We should not only inherit and carry forward the excellent elements of traditional morality, but also establish a new moral concept based on the socialist core value system, which includes the guiding ideology of Marxism, the socialist national spirit with the same ideal, patriotism, the spirit of the times of reform and innovation, and the socialist concept of honor and disgrace. Only by taking this core value system as the basis and principle of moral construction of the whole society in the new period and integrating the construction of socialist core value system into the whole process of national education and spiritual civilization construction can the spiritual strength of the whole nation and the spiritual bond of unity and harmony be formed.