According to the features of radiation modes, four groups of forces are presented. Based on this arrangement method, four independent controllers are designed by using theΗ∞algorithm. And the controllers can be uesd to control the first four acoustic radiation adjoint coefficients to minimize acoustic power. The method converts the complicated control system of four inputs/outputs into four simple independent systems of single input/output, thus each group of controlling forces can independently control the corresponding adjoint coefficient. The simulation result indicates that this method can realize decoupling control and decrease acoustic power obviously.