Educational Particle Image Velocimetry(PIV) System is designed in accordance with undergraduate teaching experiment curricula and based on the principle of PIV. As a one-stop solution, it provides teaching equipment for flow field visualization and measurement, including a recirculating water channel with standard airfoil and cylindrical bluff body obstacles, a CMOS camera, a continuous laser, and RFlow measurement software. Features of Educational PIV Equipped with Classic Cylinder Flow Experiment and Aquatic Biomimetic Flapping Wing Experiment Visualization of teaching outcomes in mechanics Comprehensive teaching support materials