Disc base plate type weighing sensor

The invention relates to a weighing sensor, in particular to a disc base plate type weighing sensor, which aims to overcome the shortcoming that an existing weighing sensor is easy to cause loading point repeatability errors during loading, and resolves the technical difficult problem that metering repeatability errors are easy to be caused during supporting due to stress excursion. The disc base plate type weighing sensor can avoid problems of loading point repeatability errors during loading and metering repeatability errors due to stress excursion during supporting, and comprises an elastic body, a strain gauge and a cable. The elastic body is ring-shaped, a bearing portion is arranged surrounding an inner ring on the upper end surface of the elastic body, the section of the upper end surface of the bearing portion is arc-shaped, the strain gauge is attached to the lower end surface of the elastic body, a supporting portion is arranged at the edge of an outer ring on the lower end surface of the elastic bo