The survivability of engine compressor is determined by the ability of enduring distortion. The distortion mainly includes total pressure, total temperature and combination of the two. Their numerical relation is of uncertainty, and can hardly be simulated by experiment on ground, especially the combined distortion. The effects of these distortions on single-rotor engine and double-rotor engine are varying. To simulate digitally the propagating processes of inlet combined distortion of total pressure and total temperature in a single-stage compressor with high loading, the paper establishes a three-dimensional compressor model, then simplifies and solves the three-dimensional Euler equations by an assumption of infinite rotors and stators and modeling the blades characteristic just by the body forces. The simulation results show that when the combined distortion is passing through the rotor, the intensities of the total pressure distortion and the total temperature distortion are increased by 13% and 13.5% respectively, and obviously higher than those of them before combination. The results also suggest that the circumferential distortion coverage vary very slightly under the condition of both distortion patterns, i.e. inlet total pressure distortion, total temperature distortion, and their combination.