A human body supporting exoskeleton device comprising: a pair of left and right base sections that have a first axis corresponding to a leg axis of a human body and a second axis corresponding to a hip axis of the human body, respectively, and have a wire guide (28, 30) at each of the first axis and the second axis; an upper body mounting section that supports the pair of left and right base sections, is located along the upper body of the user at a back of the user, and is tiltably attached to the base sections; leg mounting sections that are mounted on legs of the user and tiltably attached to the pair of left and right base sections; a hip belt that is connected to the base sections and mounted to a site near a pelvis of the human body; a pair of left and right actuator containers that are located in the upper body mounting section and contain respective actuators; the actuators contained in the actuator containers; and a pair of left and right wires that are each provided between the corresponding actuator and the corresponding leg mounting section, the left and right wires being guided by the wire guides (28, 30) to pull the leg mounting sections toward the actuators by driving of the actuators so that the upper body mounting section is tilted toward the base sections and the leg mounting sections are tilted toward the base sections, thereby propagating an urging force in a direction in which the human body is heaved upright to the human body via the upper body mounting section and the leg mounting sections, wherein the upper body mounting section has an upper body frame that includes one component located in an upper part of the human body supporting exoskeleton device, has the actuator containers, and is directly connected to the pair of left and right base sections, characterized in that the hip belt comprises: an upper hip belt that connects upper parts of target fixation parts respectively fixed to the pair of left and right base sections and is located above an upper part of a gluteus maximus of the human body, and a lower hip belt that connects lower parts of the target fixation parts and is located adjacent to a lower part of a rear part of the gluteus maximus of the human body, wherein a length of the upper hip belt is fixed, and a length of the lower hip belt is adjustable, and further characterized in that a ratio of the urging force in a direction in which the user is heaved upright to the weight of the human body supporting exoskeleton device is 6 kgf/kg or more. a pair of left and right base sections that have a first axis corresponding to a leg axis of a human body and a second axis corresponding to a hip axis of the human body, respectively, and have a wire guide (28, 30) at each of the first axis and the second axis; an upper body mounting section that supports the pair of left and right base sections, is located along the upper body of the user at a back of the user, and is tiltably attached to the base sections; leg mounting sections that are mounted on legs of the user and tiltably attached to the pair of left and right base sections; a hip belt that is connected to the base sections and mounted to a site near a pelvis of the human body; a pair of left and right actuator containers that are located in the upper body mounting section and contain respective actuators; the actuators contained in the actuator containers; and a pair of left and right wires that are each provided between the corresponding actuator and the corresponding leg mounting section, the left and right wires being guided by the wire guides (28, 30) to pull the leg mounting sections toward the actuators by driving of the actuators so that the upper body mounting section is tilted toward the base sections and the leg mounting sections are tilted toward the base sections, thereby propagating an urging force in a direction in which the human body is heaved upright to the human body via the upper body mounting section and the leg mounting sections, wherein the upper body mounting section has an upper body frame that includes one component located in an upper part of the human body supporting exoskeleton device, has the actuator containers, and is directly connected to the pair of left and right base sections, characterized in that the hip belt comprises: an upper hip belt that connects upper parts of target fixation parts respectively fixed to the pair of left and right base sections and is located above an upper part of a gluteus maximus of the human body, and a lower hip belt that connects lower parts of the target fixation parts and is located adjacent to a lower part of a rear part of the gluteus maximus of the human body, wherein a length of the upper hip belt is fixed, and a length of the lower hip belt is adjustable, and further characterized in that a ratio of the urging force in a direction in which the user is heaved upright to the weight of the human body supporting exoskeleton device is 6 kgf/kg or more.