A vibration actuator, comprising: a movable body including one of a coil and a magnet disposed on a radially inner side of the coil while being spaced from the coil; a fixing body including the other one of the coil and the magnet; and an elastic support portion supporting the movable body in such a way that the movable body is freely movable with respect to the fixing body, wherein the movable body vibrates with respect to the fixing body in a magnetization direction of the magnet, the magnetization direction is the axial direction of the coil, in cooperation with the coil to which power is supplied and the magnet, wherein: the fixing body includes a surrounding wall portion that is disposed to surround the movable body in a direction intersecting the magnetization direction, the movable body includes a core portion to which one of the coil and the magnet is fixed, the core portion being disposed to surround both of the coil and the magnet, the core portion being formed of a covered tubular magnetic body forming the outer periphery of the movable body, the elastic support portion is a plate spring which includes one end portion of annular shape fixed to the core portion, and another end portion fixed to the surrounding wall portion, the plate spring being disposed in a radial direction from the outer periphery of the core portion, characterized in that the one end portion of the elastic support portion is bonded by a fixing portion provided in an opening edge portion of the core portion, the fixing portion has a fixing stepped surface onto which the one end portion is fitted and a caulking claw portion; wherein by striking or tightening of the caulking claw portion the one end portion is sandwiched and firmly fastened between the fixing step surface and the caulking claw portion, and the one end portion is bonded to caulking claw portion through caulking over the entire periphery of the one end portion. a movable body including one of a coil and a magnet disposed on a radially inner side of the coil while being spaced from the coil; a fixing body including the other one of the coil and the magnet; and an elastic support portion supporting the movable body in such a way that the movable body is freely movable with respect to the fixing body, wherein the movable body vibrates with respect to the fixing body in a magnetization direction of the magnet, the magnetization direction is the axial direction of the coil, in cooperation with the coil to which power is supplied and the magnet, wherein: the fixing body includes a surrounding wall portion that is disposed to surround the movable body in a direction intersecting the magnetization direction, the movable body includes a core portion to which one of the coil and the magnet is fixed, the core portion being disposed to surround both of the coil and the magnet, the core portion being formed of a covered tubular magnetic body forming the outer periphery of the movable body, the elastic support portion is a plate spring which includes one end portion of annular shape fixed to the core portion, and another end portion fixed to the surrounding wall portion, the plate spring being disposed in a radial direction from the outer periphery of the core portion, characterized in that the one end portion of the elastic support portion is bonded by a fixing portion provided in an opening edge portion of the core portion, the fixing portion has a fixing stepped surface onto which the one end portion is fitted and a caulking claw portion; wherein by striking or tightening of the caulking claw portion the one end portion is sandwiched and firmly fastened between the fixing step surface and the caulking claw portion, and the one end portion is bonded to caulking claw portion through caulking over the entire periphery of the one end portion. the fixing body includes a surrounding wall portion that is disposed to surround the movable body in a direction intersecting the magnetization direction, the movable body includes a core portion to which one of the coil and the magnet is fixed, the core portion being disposed to surround both of the coil and the magnet, the core portion being formed of a covered tubular magnetic body forming the outer periphery of the movable body, the elastic support portion is a plate spring which includes one end portion of annular shape fixed to the core portion, and another end portion fixed to the surrounding wall portion, the plate spring being disposed in a radial direction from the outer periphery of the core portion, characterized in that the one end portion of the elastic support portion is bonded by a fixing portion provided in an opening edge portion of the core portion, the fixing portion has a fixing stepped surface onto which the one end portion is fitted and a caulking claw portion; wherein by striking or tightening of the caulking claw portion the one end portion is sandwiched and firmly fastened between the fixing step surface and the caulking claw portion, and the one end portion is bonded to caulking claw portion through caulking over the entire periphery of the one end portion.