A sheet conveying apparatus of the present invention includes an apparatus body, a conveyance unit which is movably supported by the apparatus body toward an outside of the apparatus body, and includes a sheet conveying path, a conveying guide which forms the sheet conveying path, and is rotatably supported on the conveyance unit wherein in a state that the conveyance unit moves to the outside, the conveying guide can be held in an opening position where the sheet conveying path is opened, and an interlock portion which causes a closure of the conveying guide held in the opening position through interlocking with an operation of mounting the conveyance unit in the apparatus body.