Is there any requirement for the singer's education?

There are generally no restrictions unless you are illiterate! Of course, large record companies will have certain restrictions. Generally, there are few clear restrictions on domestic record companies, because now the debut singers are relatively young and it is impossible to ask for a high diploma. But it's really hard to be a singer now. You can't just know a little about music theory. Unless you have a good voice or a good work recommended to you, you can only choose to go to that kind of record company or open selection, but that kind of selection needs honesty. Another way is that you take the initiative to participate in the recruitment of some companies. At present, some small new record companies in China have adopted the mode of open recruitment and signing contracts after training. There are many such companies in Beijing! But it's really hard. I suggest you think twice. Be careful not to be fooled, because the internal mechanism and management of many companies are not standardized ~ it is even harder if you don't care at home!