An automotive body transfer method and a transfer system are provided in which, when carrying out handing over of a body (B) between transfer means (5, 6) and transferred-to means (3) in an automobile production process, one longitudinal half (Ja) of each of front and rear pairs of left and right jack-up brackets (J, J; J, J) formed in lower parts of left and right side sills (Bs, Bs) of the body (B) is supported by the transfer means (5, 6), and the other longitudinal half (Jb) of each of the jack-up brackets (J, J; J, J) is supported by the transferred-to means (3), thereby enabling the shape and structure of the transfer means and the transferred-to means to be simplified.