Abstract: With the online literary works becoming more and more popular, the behavior of Ronggen (a more obscure act of plagiarism) has entered the scope of copy- right law. The types of Ronggen are complex and diverse. Its infringement recognition has become a difficult problem, mainly due to the unclear concept of the public domain, the imperfect existing identification rules and the single subject of infringement identification. In specific cases, it can provide solutions for infringement recognition of Ronggeng and promote the prosperous development of China's network literature to establish a judicial identification mechanism with multiple participators, reasonably distinguish ideas and expressions, clear the scope of public domain and accurately determine whether the behavior can be constituted substantial similarity or fair use.