The invention relates to screening equipment and particularly relates to sand screening equipment for hydraulic engineering construction. The invention provides the sand screening equipment for hydraulic engineering construction, wherein the sand screening equipment for hydraulic engineering construction can control the screening speed of sand, is convenient to take out qualified sand which is screened and prevents impurities in the qualified sand which is screened. In order to solve the technical problem, the invention provides the sand screening equipment for hydraulic engineering construction. The sand screening equipment for hydraulic engineering construction comprises a mounting plate, a L-shaped supporting rod, an emptying frame, a discharging device, a swinging device, a screening frame and the like; the L-shaped supporting rod is arranged on the left side of the top of the mounting plate, the emptying frame is arranged on the right side of the top o f the L-shaped supporting rod, the discharging device is arranged in the lower portion of the emptying frame, the swinging device is arranged at the center of the top of the mounting plate, and the screening frame is arranged onthe top of the swinging device. By means of the emptying plate, qualified sand which is screened can be prevented from falling onto the right side of the top of the mounting plate to affect normal operation of equipment when the qualified sand which is screened is taken out, and the effect of improving the work efficiency is achieved.