摘要:The purpose of the paper is to present the basic principles governing the internal audit mission, as well as the code of conduct which should be observed in exercising such mission. On the other hand, we sought to highlight the mechanisms used to apply such principles into practice and the compliance to certainrules of conduct leading to the increase in the efficiency of the internal audit activity. For the achievemnt of this purpose, we started from the basic concepts related to the problems of the principles and conduct in the internal audit, and we continued by exemplifying them by means of the applicable standards in force. We also sought to highlight the place and role of the two categories of elements in the process of conducting an internal audit mission, as well as their economic and social implications.