Ceiling lamp capable of taking electricity in rotating mode

The ceiling lamp comprises a ceiling base and a lamp holder, a light-emitting source and a lampshade are fixed to the bottom of the lamp holder, an installation concave cavity is formed in the center of the top face of the lamp holder, a buckle convex edge is integrally formed at the bottom end of the outer side face of the ceiling base, and a plurality of receding grooves are formed in the buckle convex edge. A pressing protrusion is arranged on the inner wall of the mounting cavity, an electricity taking base is fixed to the bottom wall of the mounting cavity, an electricity taking probe is fixed to the side face of the electricity taking base and electrically connected with a drive of the light-emitting light source, an electricity taking connecting base is arranged on the bottom face of the ceiling base, and an electricity taking jack with an opening in the side face is fixed in the electricity taking connecting base. And a conductive copper sheet is fixed in the electricity taking jack. The LED lamp is r