To simplify assembling from an inside of a liner, in attaching liner elements for a combustor.

This combustor of the present invention is provided with a burner 2 arranged in the combustor 1, the liner 4 arranged inside the combustor, and an outlet opening 3, the liner includes the plurality of liner elements 5 attached elastically to a combustor container 7 by respective guide rails 6, and the guide rail elements are arranged in a combustor side to be projected to an outer circumferential side between the two adjacently arranged liner elements.