Abstract: In the field of healthcare service, it is crucial to optimize medical innovation services by combining the preferences of health service providers and demanders (i.e., stakeholders). The best-worst scaling (BWS) method with distinctive advantages is a recently developed stated preference method for assessing preferences. Nevertheless, there is a lack of a comprehensive introduction to stakeholder preference assessment using BWS, constraining its applications and promotion. This paper provides the process of using BWS to assess service providers' preferences for the Shared Medical Appointment for diabetes(SMART), which is an integrated healthcare service of medicine and health management, to provide references for researchers in the future for promoting the use of BWS in implementation science.