An electronic cigarette case for accommodating a cigarette. The electronic cigarette case comprises a housing main body and a rotation door mechanism arranged on the housing main body; the housing main body comprises a housing top face and a housing bottom face opposite to each other, and at least one first housing side face which is arc-shaped with a certain radian, an opening is formed in the first housing side face for picking and placing the cigarette; the rotation door mechanism at least comprises a rotation door which has an arc-shaped surface matching with the radian of the arc-shaped first housing side face, for covering the opening, and the rotation door is configured to have a capability of rotating along an arc plane defined by the radian thereof to expose the opening so as to take out or put into the cigarette.