According to the annual audit plan, the company conducts internal audit on the quality management system and environmental management system currently operated by the company. The audit team is composed of four members, with the management representative as the team leader. The two-day audit involves all departments. After checking the documents, the company has issued three written non-conforming items and put forward some improvement suggestions orally. According to the improvement suggestions put forward by the responsible department, the causes are analyzed to correct and improve, and the corrective measures can be completed on time. This audit is not only a review of the company's own management, but also provides learning opportunities for the subsequent improvement of management level.