The invention provides a motor fan and air fluidity adjustment equipment comprising the same. The motor fan comprises a motor, an inverter, a current detection unit and a controller; the inverter comprises multiple semiconductor switching elements for inverting a direct current into an alternating current to be provided for the motor; the current detection unit performs real-time collection on thecurrent which passes through the motor; and when the current of the motor exceeds a current-limiting threshold value, the controller controls the power-on mode of the inverter to lower an equivalentdriving voltage output to the motor. By virtue of the motor fan and the air fluidity adjustment equipment provided by the embodiments of the invention, the rotating speed of the motor can be adjustedautomatically in different static pressure working conditions, and low-noise operation can be realized while enough air flow is ensured.