A sheet conveying device includes: a skew detection section configured to detect a tilt of a sheet to be conveyed; two skew correction roller sections that are arranged side by side in a sheet width direction and are independently able to be driven; a downstream-side conveying roller section arranged at a downstream side of the skew correction roller sections in a sheet conveying direction; and a control section configured to control conveying operations of the skew correction roller sections based on a detection result of the skew detection section, wherein at least one of the skew correction roller sections is configured to be movable in the sheet width direction, and the control section moves at least one of the skew correction roller sections outward in the sheet width direction at predetermined timing.