The invention discloses a novel efficient road sprinkling device. The novel efficient road sprinkling device comprises a sprinkler and an engine connected with the sprinkler, wherein the engine is used to driving the sprinkler; the engine comprises a power part, an oil spraying system and a hydraulic part; the hydraulic part comprises a compression cavity, a pump cavity, a return cavity and a hydraulic circuit; the compression cavity is arranged on the back part of the engine, and is provided with a first oil port and a second oil port; the first port and the second port are connected with a compression energy accumulator respectively through a first control valve and a second control valve; the pump cavity is connected with a low-pressure oil circuit and a high-pressure oil circuit respectively through a one-way valve; low-pressure oil circuit is provided with a return control valve and a low-pressure energy accumulator; a pressure reducing valve is arranged on an oil pipeline from the high-pressure energy accumulator and a cylinder block; a starting valve is arranged on an oil pipeline between the compression energy accumulator and the high-pressure energy accumulator. The novel efficient water spraying device has the advantages of simple structure, convenience in manufacturing, high scavenging efficiency, stable performance and large output torque, and a complete control system and a position detection system are designed.