Measuring ruler and measuring method for straight crotch depth, convex belly amount, hip warping amount and humpback amount

The invention relates to a measuring ruler, in particular to a measuring ruler capable of measuring the sizes of a plurality of special parts of the human body, and a method for measuring the straightcrotch depth, convex belly amount, hip warping amount and humpback amount of the human body by adopting the measuring ruler. The measuring ruler comprises a first measuring ruler body which is vertically arranged, a sliding base arranged on the first measuring ruler body in a sliding manner, and a second measuring ruler body arranged on the sliding base in a sliding manner and horizontally arranged; the first measuring ruler body is provided with scale lines, or the sliding base is provided with a first electronic distance measuring device; the second measuring ruler is provided with scale lines, or the sliding base is provided with a second electronic distance measuring device. The measuring ruler is simple in structure, convenient to use, and wide in application range, and the straightcrotch depth, convex belly