The establishment of a united operation platform with multi-operation management, which basically includes DTV, data traffic, VOD, CMTS, VAS and some multimedia applications, is urgent demanded by Chinese cable TV networks service providers during the conversion of Television digitization which is treated as a part of the information infrastructure nationally. This paper proposes a comprehensive support platform that sustains multi-operation based on backbone business and customer management. The ETOM model that has been broadly applied in business operations by Telecom networks service providers is introduced for the frame design of Business and Operation Support System (BOSS) in this case. The main content covers the excogitation of integrated planning and business models that generally contains Customer Model, Products Model and Billing Model. Through this project, a business support system combined with multi-operation management is formed. Meanwhile, a flexible strategy of internal process and external marketing has been established. This research can provide valuable reference for the fast-growing cable TV networks service providers not only in China, but also in globe.