The man does not pay maintenance fees, which is a civil dispute. Generally, he only needs to bear civil liability and does not need to go to prison.
Article 48 of the Marriage Law of China clearly stipulates that the people's court shall enforce judgments or rulings on maintenance, alimony, alimony, property division, inheritance, visiting children, etc.
It can be seen that not giving child support will not lead to imprisonment, but it will be enforced by the people's court according to law.
