This paper summarizes the fundamental theories of amplitude compensation and recovery, including spherical spreading compensation, formation absorption compensation, and surface-consistent amplitude compensation, concluding that the attenuation factor caused by wavefront divergence is inversely proportional to the product of velocity and time; the quality factor for seismic wave absorption attenuation is related to the absorption coefficient, where a higher absorption coefficient results in a smaller quality factor and greater energy loss of the seismic wave; surface-consistent amplitude compensation can eliminate the influence of spatial variations in surface conditions on amplitude, enhancing amplitude fidelity. The paper analyzes factors affecting seismic amplitude, such as fluid saturation, frequency, lithology, pressure, and temperature, and concludes that frequency is the most significant factor influencing amplitude. In response to issues regarding the poor quality of seismic data in the western margin of the Ordos region, this study explores methods and approaches to improve signal-to-noise ratio, fidelity, and resolution, finding that band-pass filtering does not significantly enhance the quality of the data in this area; phase compensation merely enhances overall amplitude energy; Q compensation suppresses shallow reflection information while compensating for deep reflection information, making it unsuitable for the study area; true-amplitude recovery significantly improves the weak deep reflection information in seismic profiles of the western margin of the Ordos Basin under current conditions.