The utility model belongs to the technical field of power generating devices, and discloses a treading and crushing power generating device. The device comprises a power generating module (1), a protection box body (2) and a storage battery; the power generating module (1) is movably placed in the protection box body (2); and the storage battery is positioned at the exterior of the protection box body (2). The device provided by the utility model adopts a modular design, and can be used for not only effectively improving the energy conversion efficiency, but also providing convenience for the maintenance at the later stage. Compared with similar products, the device provided by the utility model has high total power generation amount, and on the basis of taking 65kg of a human body as the measurement standard, through testing, the power generation amount by treading each time according to 1s is about 3.7W. The device provided by the utility model is simple and compact in structure, and is conductive to lowering the production cost. The device provided by the utility model is convenient to install and maintain.