A thermal stress of electrode members (121 to 123) due to an operation temperature may be relaxed by thermal stress relaxation layers (141 to 144), and thus peeling of the electrode members (121 to 123) due to thermal stress at the operation temperature may be prevented in a satisfactory manner. Furthermore, diffusion of a constituent component of the thermoelectric conversion members (111 and 112) due to the operation temperature and the like may be prevented by diffusion prevention layers (151 to 154), and thus durability and stability of the thermoelectric conversion module (100) may be improved.