Xin means prosperity of wealth, and its name implies rolling financial resources, prosperous career and rich and beautiful life. Lin means endless rain, and its name means grace, which is a very pleasant and unique name; Names refer to the names of people, products and objects, which can be divided into broad and narrow sense, as well as nicknames, aliases, nicknames, birth names, etc. The broad sense names include the surnames and names of citizens and the names of legal persons and unincorporated organizations; In a narrow sense, a name only refers to a citizen's surname and first name, which is a combination of a name and a word. In ancient China, names and words were used separately. Now, when they are collectively called "names", they refer to names or names. The research team led by Cai Huajian, Institute of Psychology, Chinese Academy of Sciences, found that China people's preference for their own names is closely related to their happiness: the more a person likes his own name, the happier he will feel. Judging from the actual situation in China, allowing children to take their father's surname or mother's surname and advocating the adoption of both parents' surnames can not only show the family and blood relationship between children and parents, but also have positive significance in solving the problem of repeated names of people with big surnames.