A combustor cooling panel that defines a circumference of a combustion gas passage for combustion gas (G) to flow through from an upstream side (Su) to a downstream side (Sd) in an axial direction (Da) in which an axis (Ac) of a combustor extends, the combustor cooling panel comprising: an inner surface capable of coming in contact with the combustion gas (G); an outer surface facing the opposite side from the inner surface ; and a first channel (61;71) and a second channel (81;81x) through which a cooling medium can flow, the first channel (61;71) and the second channel (81;81x) extending between the inner surface and the outer surface in a direction along the inner surface and the outer surface , at a constant distance from the inner surface in a thickness direction (Dt) that is a direction from the inner surface toward the outer surface , wherein, relative to an end zone (63;73) of the first channel (61;71) including an end thereof in a longitudinal direction, the second channel (81;81x) has an overlapping zone (82;82x) that overlaps the end zone (63;73) in an extension direction (De) of the end zone (63;73) by extending in a direction having a component of the extension direction (De) while being separated from the end zone (63;73) in a circumferential direction (Dc) intersecting the extension direction (De), and a non-overlapping zone (83;83x) that does not overlap the end zone (63;73) in the extension direction (De), wherein a first bent portion that is bent toward the end zone (63;73) in the circumferential direction (Dc) is formed in the second channel (81;81x), and wherein the second channel (81;81x) has a second bent portion that is formed in a zone inside the non-overlapping zone (83;83x) on the opposite side from the overlapping zone (82;82x) across the first bent portion , and that is bent toward the opposite side from bending of the first bent portion . an inner surface capable of coming in contact with the combustion gas (G); an outer surface facing the opposite side from the inner surface ; and a first channel (61;71) and a second channel (81;81x) through which a cooling medium can flow, the first channel (61;71) and the second channel (81;81x) extending between the inner surface and the outer surface in a direction along the inner surface and the outer surface , at a constant distance from the inner surface in a thickness direction (Dt) that is a direction from the inner surface toward the outer surface , wherein, relative to an end zone (63;73) of the first channel (61;71) including an end thereof in a longitudinal direction, the second channel (81;81x) has an overlapping zone (82;82x) that overlaps the end zone (63;73) in an extension direction (De) of the end zone (63;73) by extending in a direction having a component of the extension direction (De) while being separated from the end zone (63;73) in a circumferential direction (Dc) intersecting the extension direction (De), and a non-overlapping zone (83;83x) that does not overlap the end zone (63;73) in the extension direction (De), wherein a first bent portion that is bent toward the end zone (63;73) in the circumferential direction (Dc) is formed in the second channel (81;81x), and wherein the second channel (81;81x) has a second bent portion that is formed in a zone inside the non-overlapping zone (83;83x) on the opposite side from the overlapping zone (82;82x) across the first bent portion , and that is bent toward the opposite side from bending of the first bent portion . <EOS>