PROBLEM TO BE SOLVED: To provide a medical double-chamber container allowing a user to intuitively recognizing non-opening of a partition part by providing a mark with excellent visibility for representing opening of the partition part.SOLUTION: A medical double-chamber container 1 includes: a partition part 4 in which a container body 2 formed of a flexible sheet is peelably joined by facing flexible sheets and a first liquid medicine chamber 3 and a second liquid medicine chamber 5 that are partitioned from each other by the partition part 4. A surface part of the partition part 4 on the surface of the container body 2 includes a linear line 25 extending in the longitudinal direction of the partition part 4, added thereto.
