The quality of financial reports issued by CFO with different background characteristics may vary, and the work of CFOs is vulnerable to the intervention of enterprise managers, which is forced to increase the risk of financial restatement in the later period. Based on the data of all A share listed companies from 2011 to 2018, this paper analyzes the influence of CFO personal, professional and identity background characteristics on the occurrence probability of corporate financial restatement. The study finds that the probability of financial restatement in CFO’s company is relatively lower due to old age, high education, audit background, no political association and small power gap between CFO and CEO. The study also finds that audit quality only moderates the influence of age, political background and power gap between CFO and CEO on financial restatement. With the improvement of audit quality, the negative impact of CFO’s age characteristics on the financial restatement probability will be further enhanced, while the positive impact of CFO’s political background and power gap with CEO on the financial restatement probability will be further curbed.