Insulation measuring scale

The invention relates to an insulation measuring scale which comprises a movable scale, a fixed scale, an insulation sleeve, a sliding handle, a digital converter and other parts. When the insulation measuring ruler is used for measuring an object, the sliding handle moves leftwards along the lower opening, the right movable ruler is driven to move leftwards, meanwhile, the digital converter is driven to move leftwards along the right upper opening, the measured object is clamped between the movable rulers and the fixed ruler, and the measurement method is the same as that of a common ruler. If not, the movement distance value collected from the scale is the size value of the measured object; the insulating sleeve, the connecting rod and the sliding handle of the insulating measuring scale are all made of insulating materials, so that the requirement of the insulating measuring scale on dimension measurement of parts such as electrified bodies and fittings of a power grid is met, the requirement of power fail