Abstract: A fan device includes a frame, a stability maintenance assembly, a shaft, an impeller, and a driving assembly. The frame includes a base and a bearing seat protruding from the base and having an accommodation space. The stability maintenance assembly is disposed in the accommodation space and includes a bearing and a magnet arranged coaxially. The bearing is located above the magnet and magnetized by the magnet. The shaft is disposed through the magnet and the bearing. The impeller is fixed to the shaft so as to be rotatable relative to the frame via the shaft and the bearing. The driving assembly includes a stator and a rotor. The stator is sleeved on the bearing seat of the frame, the rotor is mounted on the impeller and surrounds the stator, and the driving assembly is configured to drive the impeller to rotate relative to the frame.