The invention relates to the technical field of high-pressure airless spraying equipment. A common high-pressure exhaust valve is sealed by a central metal ball and a soft face in a contacted mode, the tight fit sealing mode is adopted for sealing, under the action of high pressure, the metal ball and the soft sealing face are prone to being damaged by high-pressure cutting when the high-pressure exhaust valve is opened instantly, and consequently a machine cannot work normally. A high-pressure exhaust valve for a high-pressure airless sprayer is provided by the invention and is characterized in that the high-pressure exhaust valve for the high-pressure airless sprayer comprises an exhaust valve body and a hand wheel; the exhaust valve body comprises a base, an exhaust valve bush, a ceramic ball, a ceramic ball fixing rod, an exhaust valve screw, a clamp spring and sealing rings; the base, the ceramic ball, the ceramic ball fixing rod and the exhaust valve screw are arranged in the exhaust valve bush; and the base is in interference fit with an end hole of the exhaust valve bush. The sprayer high-pressure exhaust valve which is high in high-pressure bearing capacity, not liable to be blocked, long in service life and easy to machine is designed by modifying traditional air exhaust valve structures.