Provided is a photoirradiation pad support member in which it is possible to suppress s bending of the photoirradiation pad toward a non-irradiation surface side while enabling skinship between a mother and a baby while continuing treatment for jaundice. A photoirradiation pad support member 1 is configured to support a photoirradiation pad in a state of being disposed on a non-irradiation surface side located on a reverse side from an irradiation surface of the photoirradiation pad, and is configured to suppress bending towards the non-irradiation surface side while allowing bending towards an irradiation surface side in a state of supporting the photoirradiation pad.