Abstract: The development of service industry makes people take concern service innovation. The Service-Dominant logic (SDL) provided by Vargo and Lush also provides an academic thinking logic for people to review service innovation theory. Based on the time-series, this paper reviews the research of service innovation in Western literature, divides the research into 3 stages, and discusses and compares different theories, characteristics, and research topics; meanwhile, based on the analysis of research topics in service innovation (including the definition, process, models, influential factors, and SDL effects on service innovation), the paper goes through the research process from Product-Dominant logic (PDL) to SDL, and presents the overview insights for the development and future of service innovation, which provides references for extending the research of service innovation and reviewing service innovation theory.

Key words: ：service innovation, value co-creation, Service-Dominant Logic (SDL), Product-Dominant Logic (PDL), value proposition, value constellation