本文使用沪深两市A股上市公司的面板数据,分析了审计意见和年报披露及时性与盈余质量的关系,认为二者与盈余质量之间存在显著的相关性:首先,年度财务报告被出具“非标”类型审计意见的上市公司,盈余质量较低;其次,年报披露越及时的公司,盈余质量越高。另外我们的研究结果还表明年报被出具“非标”审计意见的公司,会更晚披露财务报告,验证了变更年报预约披露日期(延迟披露)的公司则更容易被出具“非标”审计意见。 This paper uses the panel data of A-share listed companies in Shanghai and Shenzhen Stock Exchanges to analyze the relationship between the auditing opinions and the disclosure timing and the earnings quality. It is found that there is a significant correlation between them and the earnings quality. Firstly, the annual financial report is issued “Non-standard ” type of audit opinion of listed companies, lower earnings quality; Second, the more timely disclosure of annual reports, the higher the quality of the earnings. In addition, our findings also indicate that companies that issued their “non-standard” audit opinion in the annual report will disclose the financial report later and verify that companies that change the disclosure date of the annual report (delayed disclosure) are more likely to be issued non-standard "audit opinions.