Previous investigations on the submerged inlets show that the counter-rotating vortex pair originated from the side edge is helpful to inhale the external flow into the duct but increases the mixing loss of the inlet. To improve the performance of this type of inlet, a flow-control method based on a bleeding vortex is brought forward in this paper that is expected to use the positive effect of the vortex pair and to reduce the accompanied disadvantages.Computational results indicate that the control method is effective, with the total pressure recovery coefficient increased by 2.8% and the distortion index decreased by 51.0% at the design condition as compared with the baseline case. Furthermore, the impacts of slot location are also obtained, which underline the fact that it should be chosen carefully according to the transmitting path of the vortex pair. In addition, the drag analysis for the submerged inlet with flow control shows that it is promising for practical use with no extra drag penalty.of the inlet entrance impulse flux I in;y = y component of the inlet entrance impulse flux I out1 = inlet exit impulse flux I out1;x = x component of the inlet exit impulse flux I out1;y = y component of the inlet exit impulse flux I out2 = slot exit impulse flux I out2;x = x component of the slot exit impulse flux I out2;y = y component of the slot exit impulse flux L = distance between the slot and the aft lip M e = Mach number at the exit M 0 = freestream Mach number p = static pressure p b = back pressure p 0 = freestream static pressure P e = mass-averaged total pressure at the engine face P 0 = freestream total pressure P min 60 = minimum area-averaged total pressure over any 60 deg pie around the centroid of the engine face q avg = the area-averaged dynamic pressure over the entire engine face area v 0 = freestream velocity = angle of attack = boundary layer thickness at the entrance of the inlet 0 = freestream density = total pressure recovery coefficient Subscripts Avg = average value e = exit 0 = freestream Superscript = total or stagnation condition