Contact line hanger position measuring instrument

The utility model discloses a contact line hanger position measuring instrument, which comprises a pedestal which is buckled with an inner rail of a railway, wherein a side face of the pedestal is provided with an adjustable fixing bolt for fastening the inner rail of the railway; the pedestal is provided with a guide rail; the guide rail is provided with a laser emitter which can slide; the laser emitter is provided with a rotatable emission head which is perpendicular to the axial direction of the guide rail; a leveling bolt for keeping the laser emitter horizontal is arranged above the pedestal; and a graduated scale is marked on the guide rail or on the upper surface of the pedestal corresponding to the guide rail. By using the contact line hanger position measuring instrument, the position of a hanger is accurately positioned; meanwhile, the device can also be used for offset correction of a contact line cantilever, so that the spatial distance of an electrified railway contact line and the rail is guara