Abstract: This study empirically explored, the influence of experience on auditor specialization and experience to provide empirical evidence for management of how to select high audit quality auditor (firms). The empirical data including listed companies in Taiwan from 2000-2009. This study use regression to test the relationship between auditor’s expertise, experience and their audit quality. The empirical results for impacts of industry specialists indicated that companies audited by industry specialist auditors (firms) are less likely than companies audited non-specialist auditors (firms) to facing accounting restatements. This study also find that industry experience of auditors is significantly negatively associated company accounting restatements. Since, the restatement of financial restatements is a negative image for the company, this study suggest company managements hiring industry specialist auditor or an experienced auditor can reduce the possibility of restatement. For stakeholders, company managements hiring industry specialist or an experienced auditor signals that this company may possessed better financial statement quality. The results of this study extend literature by providing empirical evidence to the importance of auditor experience on their audit quality while the role of audit experience in forming expertise has been ignored by prior studies. The study contribute to auditor specialization literature by providing the evidence for the impacts of audit experience of auditor specialization and accounting restatement which is suggested to be one of the most appreciable quality of externally reported financial statement by prior studies.