The utility model is a beverage can, particularly a beverage can capable of heating or cooling at any time during a drinking process. The beverage can comprises a can body, wherein a seal case and a beverage inner can are disposed in the can body; the beverage inner can and the can body are hermetically integrated together; a toothed cutter is disposed between the seal case and the beverage inner can; the upper surface of the seal case is film, and the toothed cutter is attached on the film; one end of the toothed cutter is fixedly connected with a rotation shaft which is axially connected with the can body through a seal ring; a handle is disposed on the part of the rotation shaft exposing out of the can body; water is filled into the can body, and refrigerating or cooling chemical powder is filled into the seal case. Owing to the utility model, people can drink cool and warm beverage conveniently and rapidly at any time and any place in a hot or cold weather. The heating or cooling chemical powder is sealed into the seal case in order to prolong the guarantee period of the chemical powder.