The amount of child support fee paid is generally settled by both men and women through negotiation. If the two parties cannot solve the problem through negotiation, the court will decide according to the economic capacity of both parties and the actual cost of the child. That is, the party who has not obtained the custody of the child shall pay the child's maintenance fee between 20 and 30 percent of his/her salary every month. At the same time, the actual cost of the child shall be compared. The payment method of the maintenance fee is generally monthly. If the party who has obtained the custody request a one-time payment, it depends on the other party's ability to make a one-time payment and agrees to this payment method. It is the legal obligation of parents to pay alimony, and they may not refuse to pay it for any reason.