The invention provides a tissue box. The tissue box comprises a box body, a buckling cover arranged at the top of the box body and a box bottom arranged at the bottom of the box body, and one side ofthe buckling cover is linked with the box body through a pin shaft or a pin; the other side of the buckling cover is buckled with a flange arranged on the inner side of the top of one corresponding side of the box body through an elastic sheet arranged on the edge of the other side; an arc protrusion is formed in the outer side, away from one end of the buckling cover, of the elastic sheet and used for sliding the flange under the effect of external force to be pushed into the lower portion of the flange through the elastic force of the elastic sheet, and the clamping locking state is formed;an elliptical hole and a containing box are formed in the cover face of the buckling cover; an air cylinder tray is arranged at the box bottom, the top of an air cylinder in the air cylinder tray is fixedly connected with the box bottom, and the tray in the air cylinder tray and the box bottom are same in size and shape; the box bottom is embedded into the box body, and four corners of the box bottom are in clearance fit with four vertical edges inside the box body. It is achieved that the tissue height is adjusted, persons conveniently extract paper, and the tissue box can be used for containing small parts and viewing time and the indoor temperature and humidity.