Electronic measuring instrument

The utility model belongs to the field of measuring instruments, and particularly relates to an electronic measuring instrument. Comprising a first ruler, a second ruler and an angle detector, the upper end of the first ruler and the upper end of the second ruler are each provided with a hinge portion so that the first ruler can be hinged to the second ruler, a first ruler tip of the first ruler can abut against a second ruler tip of the second ruler, and zero scales are located at the first ruler tip or the second ruler tip. And the angle detector is arranged on the first ruler and is used for measuring an included angle alpha between the first ruler and the second ruler. A user rotates the first ruler and the second ruler in opposite directions, so that the first ruler tip and the second ruler tip are respectively located at two end points of a distance needing to be measured, the angle detector calculates and finally displays the distance between the first ruler tip and the second ruler tip by detecting th