Integrating with the relevant theory of information behavior and consumer purchasing behavior, this paper analyzes the collaborative information behaviors of online consumers based on social networks in the Web2.0 environment By analyzing their motivation and collaborative process, the paper obtains the general mode of online consumers＇ collaborative information behaviors, and on this basis the influencing factors of online consumers＇ col- laborative information behaviors are analyzed and summarized.%文章结合信息行为及消费者购买行为的有关理论，分析了Web2．0环境下用户基于社交网络的协同信息行为。通过分析其动因及协同过程得到网络消费者协同信息行为的一般模式，并在此基础上对网络消费者协同信息行为的影响因素进行分析和总结。
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