Breast measurement tool

The utility model discloses a breast measuring tool which comprises a transparent substrate, and a hollow part is arranged in the middle of the substrate. The breast measuring tool further comprises at least one measuring sheet arranged on the hollow part, the measuring sheet extends towards the center of the substrate along the edge of the hollow part, a soft tip is formed at the tip of the measuring sheet, and a positioning point is arranged on the tip. The measuring sheet is connected with the substrate in an openable manner and is provided with a measuring mark, and the measuring mark takes a scale line where the positioning point is located as a zero scale line; wherein the measuring sheet is also provided with a concentric curve measuring part which takes the positioning point as the center and comprises a plurality of concentric curves; a quadrant measuring part which takes the positioning point as an original point and comprises first to fourth quadrant parts is arranged on the substrate; the breast m