Hello, the custody and maintenance fees of children shall be negotiated by both parties. If the negotiation fails, you can bring a lawsuit to the court. According to the provisions of Articles 36 and 37 of the Marriage Law, after divorce, the children who are breast-feeding shall be raised by the breast-feeding mother in principle. If the two parties fail to reach an agreement due to a dispute over the upbringing of a child after breast-feeding, the people's court shall make a judgment according to the rights and interests of the child and the specific circumstances of both parties. After divorce, the other party shall bear part or all of the necessary living and education expenses for the children supported by one party. The amount and duration of the expenses shall be agreed by both parties; If the agreement fails, the people's court shall make a judgment. The agreement or judgment on the children's living expenses and education expenses shall not prevent the children from making reasonable demands to either of the parents in excess of the original amount of the agreement or judgment when necessary.