PROBLEM TO BE SOLVED: To provide a body pulling-up force fixture and a pulling-up force fixing lower garment, capable of supporting at ischia pulling-up force generated in a pulling-up force generation source toward a back face of a lumbar part and being worn even under clothing.SOLUTION: The body pulling-up force fixture includes: a connection part 11 connected with a lumbar part side end of a pulling-up force generation source a right gluteal sulcus member 12R arranged along a right gluteal sulcus a left gluteal sulcus member 12L arranged along a left gluteal sulcus a gluteal cleft member 13 connected with the connection part 11, a crotch side end 12Ra of the right gluteal sulcus member 12R, and a crotch side end 12La of the left gluteal sulcus member 12L a right dispersion member 14R connected with the connection part 11 and an opposite-to-crotch side end 12Rb of the right gluteal sulcus member 12R a left dispersion member 14L connected with the connection part 11 and an opposite-to-crotch side end 12Lb of the left gluteal sulcus member 12L. The opposite-to-crotch side end 12Rb of the right gluteal sulcus member 12R is disposed between an outer side end of the right gluteal sulcus and a right hip joint 3R, and the opposite-to-crotch side end 12Lb of the left gluteal sulcus member 12L is disposed between an outer side end of the left gluteal sulcus and a left hip joint 3L.