At present, there are a number of high-precision location service providers in China that can providehigh-precision positioning services nationwide, and third-party evaluation and research have been carried out on the Beidou System(BDS) high-precision positioning service capabilities of each service provider, including the evaluation and comparison of theperformance indicators of 4-star 11-frequency, single BDS and single GPS services of each service provider.The results show thatthe high-precision positioning services of the three service providers participating in the evaluation have comparable effects, and allof them can provide real-time centimeter-level positioning services.In addition, in terms of high-precision positioning serviceaccuracy, fixed rate and convergence time, single BDS is comparable to 4-star 11-frequency service and better than single GPSservice.