A multifunctional electret generator based on a permanent magnetic suspension gyroscope includes a vibration pickup rotor component and an external fixed component. A structure formed by assembling atriangular permanent magnet, an insulating substrate, a positioning baffle, and a fixing magnet cover in accordance with an assembly order is called the external fixed component. A structure formed byassembling a blade rotor, a vibration pickup rotor, and two annular permanent magnets in accordance with an assembly order is called the vibration pickup rotor component. By adjusting the positions of the triangular permanent magnet and the annular magnets, the vibration pickup rotor component can be suspended over the external fixed component under the point contact limitation of the positioningbaffle. By using the power generation principle of the electret film electrostatic induction, charges are injected into an electret film so as to generate a bias voltage on a substrate electrode covered by the vibration pickup rotor, thereby outputting AC power to an external circuit. Mechanical vibration energy, wind energy and hydraulic energy are converted into electric energy. The multifunctional electret generator has good output characteristics, a simple structure, low damping, a wide frequency band, and excellent durability and dexterity.