The medical field is considered to be a high-risk area for violating the requirements of research integrity and academic misconduct. A comprehensive evaluation of the research integrity among medical researchers as well as effective construction and management of scientific integrity is the fundamental support for advancing medical innovation. This article used Delphi method to construct an evaluation index system for the construction of scientific integrity among medical researchers， including three primary indicators of scientific research literacy，research capability，and research misconduct，seven secondary indicators，and 46 tertiary indicators. The percentage weighted method was adopted to calculate the weight values of indicators at all levels. The established scientific research integrity evaluation index system for medical researchers has high scientificity and reliability. It is recommended to provide quantitative reference for the integrity evaluation of medical researchers from the dimensions of positive education，behavioral regulation，and strict penalty to provide effective support for the construction and management of medical research integrity.