A photoelectric conversion module comprising a plurality of photoelectric conversion elements that are electrically coupled to each other, where each of the photoelectric conversion elements sequentially includes a first electrode , a photoelectric conversion layer , and a second electrode , the plurality of photoelectric conversion elements including a first photoelectric conversion element and a second photoelectric conversion element ; a coupling portion configured to couple the first photoelectric conversion element and the second photoelectric conversion element in series; a first partition portion between the first electrode forming the first photoelectric conversion element and the first electrode forming the second photoelectric conversion element ; and a second partition portion (12") between the second electrode forming the first photoelectric conversion element and the second electrode forming the second photoelectric conversion element , wherein the first electrode or the second electrode forming the first photoelectric conversion element includes a contact region which is in contact with the coupling portion , characterized by a value of X/(Y-X) is 0.3 or greater, where X denotes a length of the contact region in a coupling direction in which the first photoelectric conversion element and the second photoelectric conversion element are coupled to each other, and Y denotes a length in the coupling direction between an end of the first partition portion at a side of the second partition portion (12") and an end of the second partition portion (12") at a side of the first partition portion . a plurality of photoelectric conversion elements that are electrically coupled to each other, where each of the photoelectric conversion elements sequentially includes a first electrode , a photoelectric conversion layer , and a second electrode , the plurality of photoelectric conversion elements including a first photoelectric conversion element and a second photoelectric conversion element ; a coupling portion configured to couple the first photoelectric conversion element and the second photoelectric conversion element in series; a first partition portion between the first electrode forming the first photoelectric conversion element and the first electrode forming the second photoelectric conversion element ; and a second partition portion (12") between the second electrode forming the first photoelectric conversion element and the second electrode forming the second photoelectric conversion element , wherein the first electrode or the second electrode forming the first photoelectric conversion element includes a contact region which is in contact with the coupling portion , characterized by a value of X/(Y-X) is 0.3 or greater, where X denotes a length of the contact region in a coupling direction in which the first photoelectric conversion element and the second photoelectric conversion element are coupled to each other, and Y denotes a length in the coupling direction between an end of the first partition portion at a side of the second partition portion (12") and an end of the second partition portion (12") at a side of the first partition portion . <EOS>