A vacuum cleaner is provided to reduce vibration generation by further stably forming a rotation of a ventilation fan and a motor because gravitation uniformly acts symmetrically with respect to a rotational center. In a vacuum cleaner, a body(10) forms an external appearance. A ventilating fan(20) is installed in the body to generate a suction force and a ventilation force. A motor(22) rotates the ventilation fan. And the ventilation fan unit is arranged such that a rotational center of the ventilation fan and the motor is substantially equal to a gravitation direction.
