本研究以台灣上市、上櫃及興櫃公司為研究對象，利用問卷發放的方式，探討我國企業公司治理特質與內部稽核對財務報導可靠性貢獻之關係，並調查我國內部稽核之現況，以及內部稽核人員與外部查核人員之互動情形。本研究之實證結果顯示：（1）「公開發行公司建立內部控制制度處理準則」於2005年修訂，規定內部稽核單位應直接隸屬於董事會之後，內部稽核人員普遍認為其地位與獨立性有明顯提升。但我國企業內部稽核規模仍偏低，以1~2人為主；（2）監察人（或審計委員會）複核內部稽核工作之範疇、內部稽核之規模、內部稽核人員與外部查核人員之互動情形等，與內部稽核對財務報導可靠性之貢獻度呈顯著正相關 ；以及（3）針對內部稽核人員與外部查核人員之互動情形（包含工作協調、溝通、外部查核使用內部稽核結果之程度），內部稽核人員的認知普遍優於外部查核人員的認知。 / This paper examines the relationship between corporate governance characteristics and internal auditors’ assessments of their contributions to financial reporting reliability. This study also investigates the current status of internal auditing in Taiwan and the interaction between internal auditors and external auditors. Our results show that (1) since the applicable laws require that the internal audit department must report directly to the board of directors, internal auditors’ independence and position in their companies have improved significantly. However, the number of internal auditors in most companies is still low; (2) the extent to which the supervisors (or audit committee members) review internal audit results, the total numbers of staff in an internal audit department, and the relationship between internal and external auditors are positively related to internal auditors’ contribution to a firm’s financial reporting reliability; and (3) in general, internal auditors’ perceptions of their interactions with external auditors is better than those of external auditors.