Measuring scale for engineering supervision

The utility model discloses a measuring scale for engineering supervision, which belongs to the field of measuring scale equipment, and comprises a first straight scale and a second straight scale, the bottom of one end of the first straight scale is movably connected with the second straight scale through a hinge shaft, and a groove is arranged on the surface of the top of the first straight scale and at one end far away from the hinge shaft. The device comprises a groove, a distance measuring assembly is arranged in an inner cavity of the groove, inserting grooves are formed in the tops of the two side walls of the inner cavity of the groove, a protection assembly is inserted between the two inserting grooves, the distance measuring assembly comprises a storage box and a box cover, a laser distance measuring sensor is connected to one side wall of an inner cavity of the storage box in an embedded mode, and a microcontroller is arranged on one side of the laser distance measuring sensor. A display screen is