To enhance the load disturbance suppression of electric fuel pumps and the operational safety of aviation engines, analysis and experimental research were conducted from three aspects: carrier frequency, control structure, and control parameters. under the dual-loop control structure, the carrier frequency is positively correlated with load disturbance rejection. The speed fluctuation at a carrier frequency of 20KHz is not more than 88% of that at 10KHz; The load disturbance rejection performance of the single speed loop control structure is significantly better than that of the dual-loop control structure, making it a major influencing factor on load disturbance rejection. The primary factors affecting the load disturbance suppression of electric fuel pumps were investigated, and the main measures for load disturbance suppression were formulated, thereby improving the operational safety of aviation engines.