This research aims to study the relation between the usage of computer and the quality of service in the managerial office in TISHREEN university by measuring the. A questionnaire of (169) copies has distributed to employees in the university, and another questionnaire has distributed to (247) college students in the university. The main finding of the research can be summarized as follows: - The average of usage the computer in the office and the average of service’s responsiveness and service’s reliability is low. - There is a positive relation between the usage of computer and the quality of services that produce in the managerial office in TESHREEN University.