A Multinational oil company (MNOC) operated in Indonesia, based in Huston Texas, planned to outsource the implementation of IT in Indonesia to IT service company in Indonesia. MNOC planned to upgrade IT infrastructure and will need service management to control and support the new infrastructure. Upgrade will be done to LAN (Local Area Network) and the service management will be done by ITSC (IT Services Center). ITSC will be located in Jakarta head office and give remote service to 5 branch offices and rigs. In this final project, ITSC's Helpdesk is designed and planned using Microsoft Operation Framework (MOF) to fulfill MNOC's service management need according to requirements made by ITSC. Helpdesk is one of IT service managements defined in MOF. Furthermore, the effectiveness of designing ITSC using MOF to fulfill Service Level Agreement, which is stated in requirement document, is evaluated. Using MOF to design ITSC's Helpdesk is efective because it's best practice guidance for designing IT service management focused in people, process and technology. The classification of service management into functions (SMF) makes it easier to make IT service management plan. This final project does not have optimum outcome as it does not analyze the other IT management function and their relationship with Helpdesk. Keyword: Service Desk, Helpdesk, IT Service Management