The invention discloses a wire oil-air lubricationcontrol method. A device body is not changed. The method comprises steps of step1, setting an initial position of an electromagnetic directional valve to be in an energized state; step 2, starting a motor to drive a gear wheel to rotate, setting up oil pressure on a main oil line, limiting safe oil pressure by using an overflow valve and removing impurities in lubricating oil by using a filter; step 3, detecting whether the oil pressure reaches 6MPa within 20 seconds; step 4, proving that all lubricating points do not leak and are not stuck if the oil pressure reaches 6MPa, feeding the pressure oil to an oil-air mixer through a distributor, mixing the pressure oil with compressed air, feeding the mixture to lubricating points, completing the loading process, shutting down the electromagnetic directional valve, stopping the gear pump, unloading the oil pressure of a pipeline, and sending fault signals and shutting down rolling lines if the oil pressure fails to reach 6MPa; step 5, delaying for 5 seconds till the lubrication is completed; and step 6, energizing the electromagnetic directional valve, delaying for 30 seconds, restarting the step 2 and completing the circulation. By the aid of the method, the problem of fault time caused by the fact that rolling lines are shut down due to long loading time of an oil-air pump is solved.