The utility model relates to an autogiration lock for measurement cabinet for convenient open the measurement cabinet and the protection key keyhole, this autogiration lock is including a face frame, spring lock and rotatory locking closure, a face frame inlay and establish at measurement cabinet door inboard to the perpendicular groove that its lateral surface still was equipped with the flat face parallel of a AND gate and was harmonious with rotatory locking closure shape, the spring lock all install with rotatory locking closure and is erecting the inslot. Compared with the prior art, the utility model has the advantages of the integration, take up an area of little, open the convenience.