The invention discloses a high-efficiency all-around fruit tree spraying vehicle. The high-efficiency all-around fruit tree spraying vehicle comprises a bearing base, a cockpit ladder, a cockpit, a cockpit door, a cockpit observation window, a driving operation table, a spraying water supply device, a multi-layer spraying device, a spraying vehicle crawler belt, moving wheels, a motor base and a power motor, wherein the bearing base is of a multilateral structure; the cockpit ladder is fixedly connected to the upper left corner of the bearing base; the cockpit is fixedly connected to the top of the cockpit ladder; the cockpit door is formed in the right side of the front surface of the cockpit; and the cockpit observation window is formed in the upper half part of the cockpit. The high-efficiency all-around fruit tree spraying vehicle is simple in structure and reasonable in design, a traditional manual spraying mode is replaced with machinery, the multi-layer spraying device at the front end of a vehicle body can comprehensively and thoroughly spray fruit trees, meanwhile, the crawler belt type design facilitates movement of the vehicle body, the design of an extension arm and anextended spraying device can meet the spraying requirements of the fruit trees with different heights, and liquid needing to be sprayed can be blended through a mixed water supply device.