The photoelectric conversion element of the present invention includes: a pair of electrodes facing one another; a oxide semiconductor layer provided on one of the pair of electrodes; an electrolyte disposed between the electrodes; and a sealing part that connects the electrodes, and surrounds and seals the oxide semiconductor layer and the electrolyte. At least a portion of the sealing part comprises an inorganic sealing part formed of an inorganic material and on a surface of at least one of the electrodes and a resin sealing part that is connected to the inorganic sealing part along the direction connecting the electrodes and comprises a material including a resin. A region on a surface of the inorganic sealing part on a side closer to the electrolyte than a region connected to the resin sealing part is covered with a protective resin layer that is resistant to the electrolyte.