To explore the factors influencing the electromagnetic wave resistivity logging response, numerically simulations are performed on conventional electromagnetic wave resistivity logging signals. The effects of coil operating frequency, coil source distance, and coil spacing on the amplitude ratio and phase difference of the resistivity logging signal are analyzed. A three-layer horizontal formation model is established to simulate the azimuth electromagnetic wave resistivity logging signal. The electromagnetic field distribution in any formation under this model is deduced and calculated, and the relationship between the azimuth logging response and formation boundaries is analyzed. Additionally, an experimental model with a single transmitter and dual receivers for resistivity logging electromagnetic response is constructed. Relevant signal data are collected, and the amplitude ratio and phase difference of the resistivity logging signals are computed using the all-phase spectrum analysis method. The influence of different coil parameters on the amplitude ratio and phase difference is analyzed, and the results are compared with the previous numerical simulations for validation. The results show that the numerical simulation aligns well with the experimental response behavior. Specifically, when the formation resistivity remains constant, the amplitude ratio increases with the coil operating frequency and coil spacing, but decreases as the coil source distance increases. Conversely, the phase difference increases with the rise in coil operating frequency, coil source distance, and coil spacing. By applying the all-phase spectrum analysis method, the study provides more realistic and accurate formation resistivity and interface information, which can more effectively support logging data processing and real-time geological steering.