The invention discloses a power capacitor noise control method based on active vibration control, which includes m power capacitors, m acceleration sensors respectively arranged on the power capacitors, a noise sensor, a controller, and m actuators respectively arranged on the power capacitors. The controller is electrically connected with the acceleration sensors, the noise sensor and the actuators. The power capacitor noise method has the characteristics of strong adaptability, simple construction, shock absorption and good noise reduction effect.