The invention relates to a container cover for closely covering a container opening part, in particular to a rotating ring type incorrect opening preventing container cover. The rotating ring type incorrect opening preventing container cover comprises a base, a turnover cover, a turnover cover shaft, a lock catch shaft, a turnover cover torsional spring, a lock catch pressure spring, a lock catchand a lock catch seat. The turnover cover is axially arranged on the base through the turnover cover shaft sleeved with the turnover cover torsional spring; the front side of the base, which is closeto the end face, is provided with the lock catch seat; the lock catch is connected to the lock catch seat through the lock catch shaft; and under the action of the lock catch pressure spring, the lock catch locks the turnover cover through a protruded hook-shaped object arranged on the upper part of the lock catch. The container cover is characterized in that the outside of the turnover cover is connected with a safety ring through a safety ring shaft, and the safety ring rotates outside the turnover cover around the safety ring shaft. The container cover is simple in structure and convenientto use and can effectively prevent the container cover from being incorrectly opened.