IT outsourcing services, is the strategic choice of customers and services of external professional and technical resources to all or part of IT systems or outsourcing the work to specialized companies to complete the service models. This is the integrated use of its external customers the best IT specialized resources, so as to achieve lower costs, improve efficiency and give full play to its own core competitiveness and enhance customer's ability to deal with the external environment as a management model. At the global level since 2000, IT outsourcing a sustained, rapid growth, has become a rapidly growing industry.

        IT outsourcing services including information technology (ITO) services and business process outsourcing (BPO). Information technology outsourcing means customers will own the overall IT system or part of the system entrusted to professional services firms, which in accordance with service level agreements (SLA) requirements management, operation, maintenance of the IT system has been commissioned to service the process of . Information technology outsourcing can be divided into four main categories: Internet data center outsourcing, network outsourcing, applications outsourcing and desktop outsourcing. Business Process Outsourcing refers to customers based on their IT technical one or several business processes of professional services entrusted to the company, its service level agreements in accordance with the requirements of management, operation, maintenance has been tasked with the operational system services. Business process outsourcing include IT systems or systems based on business process operations, maintenance and support of IT services.