A hub device with clutch for an electric vehicle, comprising: a hub case provided at a center of a wheel so as to rotate with the wheel and supported by a fixed axle via a bearing member, the hub case accommodating an electric motor that rotates the hub case, an internal rotating member rotatable with the hub case about an axis, a decelerator that reduces a rotational speed of an output shaft of the electric motor and transmits a rotation of the output shaft to the internal rotating member, and a one-way clutch that transmits a rotation of the internal rotating member to the hub case but does not transmit a rotation of the hub case to the internal rotating member, wherein the internal rotating member includes an annular internal gear and a gear holder, the annular internal gear being detachably attached to the gear holder, wherein the gear holder being rotatably supported by the fixed axle via an another bearing member, the decelerator includes a sun gear rotated by the output shaft of the electric motor, and a planetary gear engaged with the sun gear and the internal gear, the one-way clutch includes a first engaging member provided on an outer periphery of the internal gear and a second engaging member provided in the hub case, the second engaging member is disposed so as to surround the internal gear from outside in a radial direction, and the first engaging member is engaged with the second engaging member in one rotation direction of transmitting the rotation of the internal rotating member to the hub case but is not engaged with the second engaging member in an opposite rotation direction from the one rotation direction. a hub case provided at a center of a wheel so as to rotate with the wheel and supported by a fixed axle via a bearing member, the hub case accommodating an electric motor that rotates the hub case, an internal rotating member rotatable with the hub case about an axis, a decelerator that reduces a rotational speed of an output shaft of the electric motor and transmits a rotation of the output shaft to the internal rotating member, and a one-way clutch that transmits a rotation of the internal rotating member to the hub case but does not transmit a rotation of the hub case to the internal rotating member, wherein the internal rotating member includes an annular internal gear and a gear holder, the annular internal gear being detachably attached to the gear holder, wherein the gear holder being rotatably supported by the fixed axle via an another bearing member, the decelerator includes a sun gear rotated by the output shaft of the electric motor, and a planetary gear engaged with the sun gear and the internal gear, the one-way clutch includes a first engaging member provided on an outer periphery of the internal gear and a second engaging member provided in the hub case, the second engaging member is disposed so as to surround the internal gear from outside in a radial direction, and the first engaging member is engaged with the second engaging member in one rotation direction of transmitting the rotation of the internal rotating member to the hub case but is not engaged with the second engaging member in an opposite rotation direction from the one rotation direction.