The parties to the traffic accident should pay the medical expenses. If the parties do not pay, they can pay the medical expenses first, and then ask the other party to compensate for the medical expenses through legal proceedings. The law does not stipulate that the actor has the obligation to pay in advance. The traffic police will not determine the amount of compensation, will not force the perpetrators to pay first, and can only organize mediation between the two parties. The basic principle of mediation is voluntariness. If mediation fails, the court will decide. In China, only conciliation statements made by courts and arbitration institutions have the force of enforcement. Therefore, before the judgment, any money must be paid by the party concerned, and no one can force him. If the vehicle involved in the accident participates in compulsory motor vehicle third-party liability insurance, the insurance company shall pay the rescue expenses within the liability limit; Rescue expenses exceed the liability limit, and did not participate in compulsory motor vehicle third-party liability insurance or escape after the accident, the road traffic accident social assistance fund shall advance part or all of the rescue expenses, and the road traffic accident social assistance fund management institution has the right to recover from the person responsible for the traffic accident.

Legal basis:

Article 22 of the Regulations on Compulsory Liability Insurance for Motor Vehicle Traffic Accidents

Under any of the following circumstances, the insurance company shall pay the rescue expenses in advance within the liability limit of compulsory motor vehicle traffic accident liability insurance, and have the right to recover from the victims:

(a) the driver has not obtained the driving qualification or is drunk;

(2) The insured motor vehicle was stolen during the accident;

(3) The insured intentionally creates a road traffic accident.

Under any of the circumstances listed in the preceding paragraph, if a road traffic accident occurs and property losses are caused to the victim, the insurance company shall not be liable for compensation.