The main purpose of this study was to show the role of management information system application in improving the performance of the public universities in Sulaimani city of Iraq. The study's sample consists of (200) of administrative employees from all the public universities in the city. The most important conclusion of the research is that all predicted variables of (System and Information Quality, Customer Satisfaction, User Training, Organizational Leadership, and Organization Services Quality) are significant and toward positive effect on the response variable which is Organization Performance of public universities. Furthermore, the results show that (System and Information Quality) and (Organization Services Quality) have the most and the least effects on the Organization Performance respectively. Likewise, the correlation coefficient between Organization Performance and each of the predicted variables is positive with a moderate level of power, and the most powerful relationship was between (Organization Performance) and (System and Information Quality). In order to more effectively and successfully implement the management information system of the universities and to increase the organization's and employee's performance, it is suggested to the universities management to upgrade the existing management information system continuously and have a training program for all administrative staff of the university.