A fixing device includes: a fixing belt; a facing member disposed on an inner side of the fixing belt; a pressure roller that presses against the fixing belt toward the facing member from outside to form a fixing nip area; a heat source; a non-passage area temperature measurer that measures a temperature of a sheet non-passage area; a pressure roller swinger that swings one end side of the pressure roller in a direction intersecting with a longitudinal direction of the fixing nip area; and a controller that performs meandering correction control for correcting a movement direction of the fixing belt by causing the pressure roller swinger to swing the pressure roller, and the controller has such a movement mode as to cause the pressure roller swinger to forcibly move the fixing belt in a direction away from the non-passage area temperature measurer while rotating the fixing belt.