Innovation community is defined and based on model of SECI ,the process of knowledge innovation in user virtual community is subscribed .Taking into account of knowledge innovation and characteristics of user behavior in the internet environment ,a value chain model of knowledge innovation based on user virtual community is established to study support activities and basis activities of knowledge innovation respectively .Beijing Xiaomi Science and Technology Co .,Ltd ,for example ,indicates the specific procedures and measures based on knowledge innovation model of company in user innova‐tion community .%定义了用户创新社区，根据SECI模型，描述了用户创新社区中的知识创新过程。基于网络环境下知识创新和用户行为特征，构建了基于用户创新社区的企业知识创新价值链模型，分别研究了模型中提出的知识创新辅助活动和知识创新基本活动。以小米科技为例，指出了实施基于用户创新社区的企业知识创新模式的具体实施步骤和措施。
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