PROBLEM TO BE SOLVED: To make it possible to reduce a burden to a user and adjust assist force adequately in a power-assist suit.SOLUTION: A power-assist suit comprises: a lower limb component 11 which includes a thigh drive mechanism 22A, 22B and a leg drive mechanism 44A, 44B which can be fitted to the lower limb of a user and assist muscle force an upper limb component 12 which can be fitted to the upper limb of the user while being connected to the lower limb component 11 a load cell 73 which detects a load acting to the upper limb component 12 and a lower limb movement control component 16 which adjusts assist force by the thigh drive mechanism 22A, 22B and the leg drive mechanism 44A, 44B based on the detection result of the load cell 73.