A spectacle lens producing apparatus for producing a pair of right and left spectacle lenses each including: a distance vision region, a near vision region, and a progressive region in which a refractive power progressively changes between the distance vision region and the near vision region, the spectacle lens producing apparatus comprising: a reference lens setting means to set a reference lens (BL,BL R, BL L) common to right and left, based on prescription information of a wearer; a reference object surface setting means to set a reference object surface formed of a plurality of object points arranged at different object distances based on the reference lens (BL, BL R, BL L) on right and left; and a designing means to set right and left prescription lenses (PL, PL R, PL L), based on prescription information of the wearer, such that a height position of a distance eye point that is a reference point of the distance vision region is different between right and left, in a state of being mounted in a spectacle frame, in accordance with a right/left difference of pupil height position of the wearer, and design, for each prescription lens (PL, PL R, PL L) of the set right and left prescription lenses (PL, PL R, PL L), a corridor of the prescription lens (PL, PL R, PL L) based on a principal ray from each object point on the reference object surface so that the corridor length with a higher distance eye point is longer than the corridor length with a lower distance eye point. a distance vision region, a near vision region, and a progressive region in which a refractive power progressively changes between the distance vision region and the near vision region, the spectacle lens producing apparatus comprising: a reference lens setting means to set a reference lens (BL,BL R, BL L) common to right and left, based on prescription information of a wearer; a reference object surface setting means to set a reference object surface formed of a plurality of object points arranged at different object distances based on the reference lens (BL, BL R, BL L) on right and left; and a designing means to set right and left prescription lenses (PL, PL R, PL L), based on prescription information of the wearer, such that a height position of a distance eye point that is a reference point of the distance vision region is different between right and left, in a state of being mounted in a spectacle frame, in accordance with a right/left difference of pupil height position of the wearer, and design, for each prescription lens (PL, PL R, PL L) of the set right and left prescription lenses (PL, PL R, PL L), a corridor of the prescription lens (PL, PL R, PL L) based on a principal ray from each object point on the reference object surface so that the corridor length with a higher distance eye point is longer than the corridor length with a lower distance eye point. a reference lens setting means to set a reference lens (BL,BL R, BL L) common to right and left, based on prescription information of a wearer; a reference object surface setting means to set a reference object surface formed of a plurality of object points arranged at different object distances based on the reference lens (BL, BL R, BL L) on right and left; and a designing means to set right and left prescription lenses (PL, PL R, PL L), based on prescription information of the wearer, such that a height position of a distance eye point that is a reference point of the distance vision region is different between right and left, in a state of being mounted in a spectacle frame, in accordance with a right/left difference of pupil height position of the wearer, and design, for each prescription lens (PL, PL R, PL L) of the set right and left prescription lenses (PL, PL R, PL L), a corridor of the prescription lens (PL, PL R, PL L) based on a principal ray from each object point on the reference object surface so that the corridor length with a higher distance eye point is longer than the corridor length with a lower distance eye point.