Abstract: This paper proposes a verification method for electronic single-and-multi-point inclinometers, identifies technical indexes of well deviation angle, azimuth angle, and tool surface angle, and puts forward requirements for each performance index. The method was used to verify electronic single-and-multi-point inclinometers from different manufacturers. The results showed that the method can be used to evaluate the metrological performance of electronic single-and-multi-point inclinometers.