The amount of the project price is very huge. When the project price is settled, it must be carefully settled according to the amount and calculation method agreed in the contract. If there is an error, the best amount will vary greatly, and one party will not accept the final result, and may also be in court. In practice, the construction project contract payment should be determined when the construction contract is signed. If both parties have disputes over the project payment after the completion of the project, they can negotiate and mediate privately. If the negotiation and mediation fail, they can appeal to the court for a ruling.