If you want or want to fight for the child's custody, you can negotiate with the other party. If the other party does not agree, you can sue for the child's custody. Of course, you must prove that you are more conducive to the child's custody, such as your economic income, your living environment, cultural level, and even your living habits are superior to the other party or that the other party has domestic violence Abandonment, drug abuse, gambling and other wrong behaviors. In addition, for children under 2 years old, the court is more inclined to award them to the woman, because the children are more dependent on the mother at this time. Children over 10 years old also need to see their willingness to follow. In short, the court insisted on the principle that is most conducive to the healthy growth of children when deciding who should bring up children.