The invention discloses a high-efficiency building sand screening and cleaning device, which includes a feed pipe, a grid, a liquid level gauge, a box body, a water inlet pipe, a flow meter, a nozzle, a rotating shaft, a camera, a timer, an impeller, a sieve plate and an exciter. Vibrator, coarse sand discharge pipe and fine sand discharge pipe, the top of the box is provided with a feed pipe, the inside of the feed pipe is inclined with a grid, the lowest end of the grid is provided with an impurity discharge pipe, and the tank is provided with a liquid Position meter, the box is connected with the water inlet pipe, the outlet of the water inlet pipe is provided with a nozzle, the flow meter is installed on the water inlet pipe, the camera is installed on the inner wall of the top of the box, the box is equipped with a shaft, the impeller is installed on the shaft, and the box is tilted. The sieve plate is provided with an exciter on the lower surface of the sieve plate, and the sieve plate includes a first sieve plate and a second sieve plate. The invention screens sand and gravel, improves work efficiency, saves time and labor, has simple structure, is convenient to use, and is beneficial to popularization.