A magnetic driving pump device includes: an impeller driven bodies integrally rotating together with the impeller and including permanent magnets a drive unit including a magnet body on which a permanent magnet is placed such that when the drive unit rotates around a predetermined axis, different magnetic poles alternately appear on an outer periphery of the drive unit and a rotation actuator rotating the magnet body around its axis. The magnet body is arranged side-by-side with respect to the driven bodies in a state that an axis of the magnet body is oriented to a direction which is not at right angles with respect to a rotation center of the impeller, and the impeller is rotated through the driven bodies by rotating the magnet body by the rotation actuator.