This study analyzes the relationships among the socialization tactics of Certified Public Accounting (CPA) firms, new auditors’ person-organization fit, organizational citizenship behavior and turnover intention. It adopts questionnaire survey to collect data from the new employed auditors of CPA firm and uses multivariate regression to test hypothesis. The research findings suggest that collective, sequential, fixed or serial tactics a CPA firm implemented has significant positive impact on the auditor’s person-organization fit. In addition, if CPA firms use sequential or serial tactics, or auditors have higher person-organization fit, or auditors have stronger organizational citizenship behavior, such as recognized organization, interpersonal harmony, then auditors’ turnover intention is significantly lower. Finally, the higher person-organization is fit, the stronger organizational citizenship behavior an auditor will present.