The invention discloses a pilot-operated type high-flow high-speed switching valve which comprises a valve body. The valve body is provided with a longitudinal groove and a transverse groove. A pilot-operated valve is installed in the longitudinal groove. A main valve is installed in the transverse groove. The main structure in the main valve comprises a left end cover, an oil return cavity, a ball valve cavity, a right end cover and the like which are coaxially arranged in sequence. The valve has the beneficial effects that mass of a valve element is small, reversing is fast, and the overflowing amount is large. As the flow ratio of a hydraulic control valve is much larger than that of the switching valve, oil liquid of a control cavity of the hydraulic control valve is provided through a high-speed switching valve with the low flow. According to the scheme of pilot-operated control, high-frequency performance of the high-speed switching valve is effectively utilized, limitation of the small circulation ability is avoided, response time of a driver is shortened greatly, and thus high-flow high-frequency reversing of an actuator becomes possible.