The paper tries to examine the relation between auditor audit quality and market transaction quality of clientele firms. Based on the samples of companies listed on the TSE from 2008 to 2010, the empirical results reveal that bid-ask spread and transient volatility are lower and market depth is higher when audit quality is higher. In addition, we find that trouble accounting reporting is significantly and negatively associated with market transaction quality. And when trouble accounting reporting is under control, market transaction quality still increases when there is longer auditor tenure, but no rotation and auditor audit experience. Overall, audit quality will be reflected in financial statements and will have an impact on information asymmetry, thereby changing market investment decisions and market transaction quality.