Abstract All the modern enterprise management work, starts from the establish and perfect the internal control. It as self-monitoring and self-constraint mechanism of enterprise management, is directly related to the rise and fall success or failure of the enterprise. Therefore, strengthen the internal control the effectiveness of the research and analysis, to improve the system of internal control is particularly important. Internal control effectiveness refers to the enterprise to establish and implement internal control can provide reasonable assurance for the realization of the control objectives. Based on citic Pacific: an empirical study of effectiveness of internal control problems, put forward existing problems and find out the relevant countermeasures, hoping to related research can provide some reference for future. Keywords: citic Pacific, internal control; effectiveness