In a case where an actual parking technique of a driver in a parking condition is different from a parking technique shown by a parking technique model generated in a same parking condition, a parking assist apparatus outputs a question to the user about whether or not assistance for the parking operation is desired to park the vehicle. In a case where the driver accepts the assistance for the parking operation, the parking assist apparatus provide the assistance for the parking operation to park the vehicle. Thus, useless parking assistance that the driver does not desire can be prevented, and parking assistance that is truly desired by the driver can be executed.