An accelerator force control apparatus (100) is provided that basically comprising accelerator position detecting means (6), engine output control means (10), reaction force varying means (101) and reaction force increase prohibiting means (10). The accelerator position detecting means (6) is configured to detect an accelerator position. The engine output control means (10) is configured to control an engine output in accordance with the accelerator position. The reaction force varying means (101) is configured to vary a reaction force of an accelerator (2) by increasing the reaction force of the accelerator (2) beyond a base reaction force when the accelerator position is equal to or larger than a prescribed position threshold value. The reaction force increase prohibiting means (10) is configured to prohibit an increase of the reaction force of the accelerator (2) when a prescribed condition for limiting the engine output is satisfied regardless of the accelerator position.