A kind of trampling piezoelectric energy generating floor is designed to convert the mechanical energy generated by pedestrian trampling into electrical energy, which is collected and then supplied to electrical appliances. First of all, 3D modeling software is used to design the mechanical structure, design the energy harvesting system, and then make a prototype to test the maximum output voltage of the actual piezoelectric floor. The theoretical value is compared with the actual value. When the stampede force is 850N, the maximum output voltage of the piezoelectric floor is 14.6V, and its performance meets the expectations.