To provide a container manufacturing method which enables an improved clad end plate to be formed by tightly sticking a base material and a lining material together.

The base material 1 and the lining material 2 each formed in a disk shape for the purpose of forming an end plate are superposed, the two materials are formed into a required shape so that the lining material 2 is situated inside, thus forming a clad end plate 3. After that, to the required part on the base material side of this clad end plate 3, a vacuum pump-connecting suction pipe 5 is attached which is in communication with a gap 4 between the base material 1 and the lining material 2. Then, the gap 4 is evacuated by connecting the vacuum pump to this suction pipe 5.