A ceiling fan has a motor and multiple fan blades. The motor has a stator assembly and a rotor assembly. The stator frame has a frame, a stator core, and multiple coils. The frame has multiple branch containers and multiple protrusions on the branch containers. The stator core is securely mounted in the frame. The coils are wound on the branch containers and protrusions. Therefore, the coils may be an ellipse and thus the magnetic flux therein is larger, which converts electric energy torques to drive the rotor assembly in higher efficiency. Besides, the rotor has multiple magnetic components and each magnetic component has a magnetic pole. An amount of the magnetic poles is larger than that of the branch containers. The motor can provide a higher torque even at a lower rotating speed.