The advent of the internet era, the achievements of the popularization of the internet, and watch internet video are part of online behaviors. In recent years, webcast began to rise. This type of video platform has gradually became one of the trend. Its difference with the previous video platform is that this type of message platform for video publishers and audiences have more direct interaction. Base on the innovation diffusion theory, this study expects reward that users continuous usage of network video broadcast platform. The case studies conducted b y in-depth interviews. The results of this stud y show that users use the internet video broadcast platform in the process, there are many different reward factors, and the user may get these rewards from the process, and which is the reason that directly or indirectly affect the continuous usage of consumers.