The utility model belongs to the technical field of refrigeration plant's cooling air flow control, the utility model relates to a controlling means of outdoor condenser cooling amount of wind, its major structure is fixed on the female pipe of condenser collection liquid for the condensing pressure sensor passes through the installation of condensing pressure capillary, PLC central controller respectively with the condensing pressure sensor, fan frequency converter, line hookup between power -driven air valve controller and the ac contactor, fan frequency converter and ac contactor couple with the frequency conversion fan respectively, the power -driven air valve controller is connected on power -driven air valve electric actuator, mechanical linkage between power -driven air valve electric actuator and the power -driven air valve valve block, fan frequency converter and power -driven air valve controller couple respectively on the power frequency power supply line, the control process includes electric signal transition, the control frequency conversion fan volume of airing exhaust and control power -driven air valve intake, can control the condenser intake voluntarily linear, its control theory science, technology is simple and convenient, and control accuracy is high, uses manpower sparingly, and the energy consumption is low, and the fault rate is low, and is longe -lived, controls reliably.