At present, domestic evaluation of Beidou satellite signal quality mostly concentrates on the space segment and the ground segment. However, research concerning the performance of the user end under interference is rare. In order to classify the interference effectively, combined with the receiver baseband signal processing process, the interference is categorized into four categories based on the correlation time of the correlator and the spectral characteristics of the Beidou B1I signal, and the analytical expressions are derived as well. Finally, the analysis is performed regarding carrier tracking measurement error and code tracking measurement error under continuous wave interference. The simulation results of the Beidou B1I signal are in good agreement with the simulation results of GPS L1 provided by foreign studies, thus verifying the effectiveness of this method. The research about different interference types can benefit the anti-jamming design of the Beidou receiver.