The project settlement audit is the audit of the project price settlement handled by the construction unit and the construction unit at the completion of the project or at the end of the year. The main contents are as follows: (1) Intermediate settlement (including cross year settlement): check the project quantity of the project image progress, whether the construction output value and budget cost are correct and true, whether the net value of the project price payable in the current period is consistent with the construction output value or settlement value actually completed in the current period, and whether the balance after deducting the advance project payment, material preparation payment, Party A's material payment and other deductions is consistent; (2) For completion settlement, the compliance of completion quality acceptance and final settlement shall be reviewed, and the reasonableness of the accrued expenses for the unfinished part of the completion, as well as whether the economic exchanges between the two parties are clear, and whether there is any violation of settlement discipline.