PROBLEM TO BE SOLVED: To use for photographing or measuring as a state close to a walking posture when photographing using radiation of each part of the lower limbs such as hip joints, knees, feet, and toes, or measuring myoelectric potential of muscles of the lower limbs. A lower limb load position guide device is provided. A lower limb load position guide device used for diagnosing a lower limb in a state in which one of the left and right feet of a subject is applied with a weight due to the weight of one foot more than the other foot, It is equipped with a fixed base (10) on which the foot is placed, an elevating base (20) on which the other foot is placed, and an operating means for vertically moving the elevating top plate (21) of the elevating base (20). 20) is provided with a load detecting means for detecting a load applied to the elevating top plate (21). [Selection diagram] Figure 1【課題】股関節、膝、足、足指等の下肢の各部位の放射線を用いた撮影、あるいは下肢の筋肉の筋電位を計測する際に、歩行体勢に近い状態として撮影あるいは計測するために使用する下肢荷重位誘導装置を提供する。【解決手段】被験者の左右の足のうち、一方の足の方に他方の足よりも体重による荷重を加えた状態として下肢の診断を行うために用いる下肢荷重位誘導装置であって、一方の足が載せられる固定台(10)と、他方の足が載せられる昇降台(20)と、この昇降台(20)の昇降天板(21)を昇降操作する操作手段とを備え、昇降台(20)は昇降天板(21)に加わる荷重を検知する荷重検知手段を備える。【選択図】図1