Rotary bottle cap and cosmetic bottle comprising rotary bottle cap

The utility model provides a rotary bottle cap and a cosmetic bottle comprising the rotary bottle cap, relates to the technical field of packaging, and solves the technical problem that the opening difficulty is increased after the bottle cap is screwed and sealed in the prior art. The rotary bottle cap comprises a connecting base, a bottle cap mouth and a rotary switch, a connecting hole is formed in the connecting base, and the connecting base is connected with a cosmetic bottle opening through the connecting base. The bottle cap mouth is embedded in the connecting base in a sleeved mode andmovably connected with the connecting base. The rotary switch comprises a liquid outlet and a flow stopping needle, and the liquid outlet is located in the bottle cap mouth. The flow stopping needleis located on the connecting base and matched with the liquid outlet. When the bottle cap mouth rotates, the liquid outlet moves towards the side away from and/or close to the flow stopping needle, sothat the rotary switch is