Parking assist device

A parking assist device detecting a parking stall line, which indicates a parking stall within a parking space, from an image, which is captured by a capturing means;

• setting a parking target position on the basis of the parking stall line;
• and assisting the vehicle to travel to the parking target position;
• the parking assist device comprising:
• a vehicle detecting means for detecting a movement of the vehicle;
• a memorizing means for memorizing the movement detected by the vehicle detecting means, as a vehicle moving trajectory;
• a temporary parking target position estimating means for assuming a temporary parking target position on the basis of variations of the vehicle moving trajectory;
• and
• a parking stall line searching area setting means for setting a parking stall line searching area, within which a parking stall line is searched on the basis of the temporary parking target position, which is assumed by the temporary parking target position estimating means.