A sheet loading apparatus, which is equipped with a position adjustment unit that can be held in a fixed condition with a small applying force and released from the fixed condition by an intuitive and slight operation, is provided. The apparatus includes a sheet loading unit on which sheets are loaded, a position adjustment unit that can be moved in a direction that intersects with a direction in which the sheets loaded on the sheet loading unit are conveyed, and a fixation member for fixing the position adjustment unit to the sheet loading unit. The fixation member has a connection unit for connecting to the position adjustment means at a position distant from a sheet loading surface of the sheet loading unit and a fixation member-side fixation unit that is engaged with a loading-side fixation surface formed at a position close to the sheet loading surface of the sheet loading unit. A distance between the connection unit and the fixation member-side fixation unit is longer than a minimum distance between the connection unit and the loading-side fixation surface, and the fixation member-side fixation unit is arranged on the side opposite to the sheets to be adjusted with respect to the connection unit.