Abstract: The design of the head opposing jet drag reduction is carried out for the sharp leading edge spinning body, a good drag reduction effect is found by the opposing jet flow on the sharp leading-edge profile. The nonlinear coupling mechanism of aerodynamic drag reduction and, of jet drag enhancement is revealed. The selection method of jet parameters, such as jet total pressure ratio, jet Mach number and jet length diameter ratio, are established for the opposing jet drag reduction scheme under high-speed freestream. The larger the jet total pressure ratio, the larger the pure aerodynamic drag reduction, and the larger the jet counterthrust, the comprehensive drag reduction effect of aerodynamic drag coupled with jet thrust presents a nonlinear change trend, first increases and then decreases with the total jet pressure ratio, there is an optimal solution, corresponding to the better drag reduction effect. The larger the jet Mach number, the smaller the shock wave angle, the smaller the shock disengagement distance, the drag reduction effect is reduced. Therefore, it is necessary to increase the jet total pressure ratio properly. The smaller the jet length diameter ratio, the father the head shock is pushed away, but the counterthrust also increases, thusly the jet total pressure ratio should be reduced appropriately. The closer the jet length diameter ratio and jet Mach number is to 1, the better the comprehensive drag reduction effect is. When the freestream Mach number is 6, the angle of attack is 0°, the jet length diameter ratio is 1.0, the jet Mach number is 1.0, the jet total pressure ratio is 2.0, and the better comprehensive drag reduction effect is 13.7%.