Abstract:Triple-play in China is to integrate the broadcast and TV networks,the China Telecom Networks,and the Internet together,where the Internet will play a key role.Although at the preliminary stage,the triple-play in China mainly means to integrate application services in the high layer of networks,and does not mean to physically combine the three networks together,the technology will tend to be the same,for example,in the network point of view,interconnection can be established which can provide thorough coverage,and in the service point of view,there will be interpenetration and overlap,and in the application point of view,it tends to use the standard IP communication protocol.These features will lead to competation and collaboration in business operation,hence to provide users higher quality of services which are more dynamic,multimedia-driven,and more personalized.In the mean time,administrative control and policy making will also become more formal and consistant.However,the change and evolution of this new model of business operation will also face many new information security challenges that have not been encourtered before,while some other security challenges occured before may become more sensitive and servere in the triple-play environment.Therefore,in-depth study on the issues of information security in the triple-play environment is a necessity to ensure the healthy development of the triple-play,to provide necessary ensurance about the information security for users when users enjoy better network communication services. This paper gives some preliminary information security challenges and possible ways of finding solutions in the triple-play environment,tend to provide some methodological and technical approaches toward understanding and solving the information security issues in triple-play environment,and in particular,a technological approach to ensure the content security and security surveillance is provided that is different from traditional methods.