A sheet conveyance device includes a reversing conveyance portion and a conveyance guide member. A sheet from a sheet reversing portion travels into and out of the reversing conveyance portion to be switched back so that the conveyance direction of the sheet is switched. The conveyance guide member is provided in the reversing conveyance portion, and has a sheet conveyance face facing the bottom face of the sheet passing through the reversing conveyance portion. The sheet conveyance face has one or more curved portions curved in the up-down direction as viewed from the width direction orthogonal to the conveyance direction of the sheet, and curves the sheet along the curved portion.