With the advent of Internet, On-line intermediaries have put tremendous pressures on traditional intermediaries which might be disintermediated without resort to information technology. The IDR model was thus to bring about the interpretation how traditional intermediaries could regain their competitive advantage by utilizing co-specialized assets and information technology. Office supply is the domain of this research. Through observation of on-line office stationary suppliers and interviews with domain experts, the factors for constructing reintermediation strategies of traditional channel are as follows: 1. The business model of office supply. 2. The characteristics of office stationery procurement. 3. The co-specialized assets of traditional office supplies. These three factors lead to development of questionnaire in the Delphi method implemented in this research. Based upon the expert opinions from the Delphi method and the review of business model implemented by the domestic on-line stationary suppliers, this research proposed a business model with feature of domestic industry characteristics. The reintermediation strategies proposed in this research have addressed the development of e-commerce solution and the support of customer service. The traditional office stationary distributors might team up with other suppliers and information technology companies to develop a B2B e-commerce solution. As for the customer service, they could provide inventory management for enterprise users based upon their distinctive co-specialized assets. Furthermore, a development of procurement software for office supplies is necessary because it automates the procurement process and facilitates the vender managed inventory service.