A multi-chamber container of the present invention is divided into a plurality of filling chambers 11, 12 by a seal 13, and has a container body 1 with the chambers 11, 12 filled with respective solutions, and a cover 2 that covers at least one of the chambers 11, 12 of the container body 1. The cover 2 includes a pair of rigid members 21 that sandwich the seal portion 13 from the outside, and seal portions 22 provided to close the rigid members 21. In this multi-chamber container, the cover 2 is held when the filling chambers 11, 12 are not opened in therebetween, while being dropped easily when the filling chambers 11, 12 are opened in therebetween and the thickness of the seal portion 13 increases.
