Provided is a parking assistance method capable of storing surrounding situation of a parking target position appropriate to be referred to during autonomous parking. The parking assistance method of storing the surrounding situation of the parking target position when parking at the parking target position and executing the autonomous parking using the stored surrounding situation, includes a step of detecting the surrounding situation; a step of indicating the detected surrounding situation; a step of receiving a determination of whether the indicated surrounding situation are appropriate input by an occupant; and a step of storing the surrounding situation when the determination of appropriateness is input by the occupant.