A sheet material feeding device includes: a housing; a cassette configured to internally house a sheet material, and capable of being pulled out of the housing and housed into the housing; a rear-end regulating member provided inside the cassette and configured to regulate a position of an upstream end of the sheet material in a sheet material feeding direction; a rear-end displacing member supported by the rear-end regulating member and configured to swing along the sheet material feeding direction; a sliding member provided for the cassette, having an engagement part to be engaged with the rear-end displacing member, and configured to slide toward a downstream side in the sheet material feeding direction to displace the rear-end displacing member toward the downstream side in the sheet material feeding direction; and a first energizing member configured to energize the sliding member toward an upstream side in the sheet material feeding direction.