In April 2020，Candle in the Tomb：The Lost Caverns，which was broadcast exclusively by Tencent Video，had a good audience rating and reputation during its broadcast period and it provided a lot of reference experience for the promotion and development of network IP drama. Based on the theory of innovation diffusion，this study interprets the development status and problems of network IP drama by analyzing the viewing data and audience comments of the series. The research finds in the promotion process of network IP drama，we should not only adhere to the audience first，but also give full play to the innovative advantages of IP drama，which will directly affect the communication effect of network drama. In the age of we-media，the promotion of network IP drama should pay attention to the construction of fans and the guidance of authorities. At the same time，when using the Internet to integrate the resources of various media channels，copyright should be taken as the core to enhance the extension force，so as to obtain better dissemination effect.