The research will explore the effect of implementing official account spokes-character on instant messaging APP and the parasocial interaction (PSI) which will affect users’ willing. In this study, we use instant messaging as an intermediary for consumers to interact with the spokes-character, and observed which different with used by businesses staff or business executives. The research divides the Official Account of Instant Messaging APP into two groups, Career Service Center of Chung Yuan Christian University and spokes-character-Job & Clear. It assigns the experiments to two groups by random. After a month, experimenter used the official account, the experiments conduct the surveys. The result of the surveys provides the suggesting on marketing advertisement promotion for enterprise users of official account on instant messaging APP.