The utility model relates to a plug and a beverage container. The plug is provided with a plug ring (4), a plug body (5) and a plug pad (6), wherein the plug body (5) is assembled and disassembled relative to the plug ring, and the plug pad (6) is assembled and disassembled relative to the plug body. The plug (2) is mounted on a container body by screwing threads (8a) of the plug ring into threads (9a) of the container body (1). In the screw-in period, the plug pad is pressed into the inner circumference of an opening part (3) of the container body. The plug body (5) is mounted in the mode that the plug body (5) can rotate freely around the center axis C1 of the threads of the plug ring. When the plug is screwed into the container body and the friction force between the plug pad and the inner circumference of the opening part (3) of the container body becomes stronger, the plug body is in a non-rotating state due to the friction force between the plug pad and the inner circumference of the opening part althou
