If the child support fee cannot be paid, his property may be used to offset the child support fee. When parents fail to perform their duty of support, children who are minors or cannot live independently have the right to ask their parents to pay maintenance fees. If they are unable to pay, they can negotiate with the supporting party to reduce the standard of alimony. If they are really unable to repay, their property can be used to offset the alimony. If the party still refuses to execute, the court may apply to the court for compulsory execution. According to the relevant laws and regulations of our country, if a child is directly supported by one party after divorce, the other party shall bear part or all of the maintenance fees. The number of expenses to be borne and the length of the time limit shall be agreed by both parties; If the agreement fails, the people's court shall make a judgment. The agreement or judgment mentioned in the preceding paragraph shall not prevent children from making reasonable demands to either of their parents when necessary in excess of the amount originally set in the agreement or judgment.
 Legal basis
 Article 1085 of the Civil Code of the People's Republic of China [Bearing of child support after divorce] If a child is directly supported by one party after divorce, the other party shall bear part or all of the support. The number of expenses to be borne and the length of the time limit shall be agreed by both parties; If the agreement fails, the people's court shall make a judgment.
 The agreement or judgment mentioned in the preceding paragraph shall not prevent children from making reasonable demands to either of their parents when necessary in excess of the amount originally set in the agreement or judgment.