A trolley is disclosed. The trolley according to an embodiment of the present invention comprises: a wheel rolling in contact with a rail: a body supporting the wheel and having a hanging part for hanging an object; a screw shaft installed on the side of the body; a brake device with a pressure unit which puts or releases pressure on or from the side of the wheel or the side of the rail by the rotation of the screw shaft; and an operating handle which is detachably connected to the screw shaft to rotate the screw shaft.
