2. Corporate governance is an important factor in the environment of the internal audit system. The internal audit has contributed to the establishment of a good control environment. Through the assessment of the internal control system, to provide correct mistakes, improve internal control recommendations, to facilitate the establishment of a good control environment, and effectively promote the organization's control objectives to achieve a sound and effective internal control is a dynamic process, because the organization's business environment changes,Itself in constant development, the internal control system should be adapted to this change and adjust accordingly. In this adjustment process, the responsibilities of the internal audit is found in the management of the existence of errors and omissions, which focuses on from the internal control system of the defects of the audit, it is easier to find the existing defects, and put forward the improvement proposal. Internal audit of the organization is a part of the internal control system, such as audit of internal audit participation contract, audit of project budget and final accounts, and so on. Once the internal audit of the company becomes a part of the internal control system, so,The internal audit plays the role of internal audit, internal audit in the internal control system to run all aspects, the degree of participation, it is decided or at least affect the internal control system and improve the effectiveness of the degree.