The internal audit profession at present, it is necessary and very important to all types of businesses. Specifically, companies listed on the stock exchange of Thailand, Thai shorts,There was the requirement that companies that participated in the stock exchange must provide an internal audit of the company by establishing a unique agency with independent and neutral. Lol, is in accordance with the procedural rules set forth will be an essential tool in helping managers to take care shines in accordance with each of the operating divisions in the organization. The company has a system of work and has been verified on a regular basis, it will be the first channel to prevent errors that may occur.