Abstract: The Ordos Basin is rich in oil and gas resources. However, in the loess tableland area, the thick and unconsolidated loess layer causes severe absorption of seismic waves, resulting in significant high-frequency attenuation, low dominant frequency, and wavelet inconsistency in the raw data, reservoir prediction is challenging. To solve this issue, this paper develops an integrated viscoelastic medium Q processing technology series for full-layer compensation from the subsurface to the deep strata. For subsurface compensation, the peak frequency shift method is applied to double hole uphole data to establish a Q-V relationship, and a high-precision 3D Q field model is constructed using tomography velocity fields. Furthermore, a stepwise compensation method in the shot point domain and receiver point domain is employed to accurately eliminate the spatially variable absorption effects of the subsurface, effectively enhancing the resolution and wavelet consistency of the raw data. Base on this, a deep Q field model is built constrained by VSP data and Q tomography inversion, and Q migration technology is adopted to achieve amplitude and phase compensation along the actual propagation path of seismic waves. After applying this technology series in the actual seismic data, the frequency bandwidth is broadened by 15 Hz, the energy of weak signals is effectively restored, the reflection of thin coal seams become clearer, and the well-seismic correlation is significantly improved. This effectively resolves the challenge of compensating for absorption and attenuation in seismic data from the loess tableland area, providing reliable technical support for the Exploration and Development of thin reservoirs such as tight sandstone gas and coalbed methane in the Ordos Basin.