Disclosed is a parking assistance device such that it is easy to understand the process for aligning the vehicle with the guidance completion position of each stage of parking, specifically the parking start position, the steering wheel reversal position and the intended parking position. Specifically disclosed is a parking assistance device wherein a control device (11) switches to a first parking guidance indicator (45A) during first parking guidance for guiding the vehicle to the parking start position, switches to a second parking guidance indicator (45B) during second parking guidance for guiding the vehicle to the steering wheel reversal start position, and switches to a third parking guidance indicator (45C) during third parking guidance for guiding the vehicle to the final parking position.