A body of an electric vehicle may include: a floor panel; a pair of rockers extending along both side edges of the floor panel, respectively; an indoor floor crossmember protruding upward from the floor panel and connecting the rockers to each other; an outdoor floor crossmember protruding downward from the floor panel, connecting the rockers to each other, and located rearward of the indoor floor crossmember; and a battery case located below the floor panel and housing a battery configured to supply power to a traction motor. The battery case may extend from a position located frontward of the indoor floor crossmember to a position that is located rearward of the indoor floor crossmember and frontward of the outdoor floor crossmember.