In this study, prototype of an electric assist suit which can be used in both walking assist for elderly people and lifting motion in transfer work for caregiver was developed, and especially the walking assist for elderly people is discussed. In order to evaluate the developed assist suit in the walking assist for elderly people, young subjects wearing a kit to experience elderly people were regarded as imitational elderly people. To demonstrate this validity, the evaluation experiment of the elderly experience kit was conducted, and usefulness of the kit was verified through experimental result. Then, the verification experiment of the developed assist suit on the walking assist was conducted to the young subjects wearing the elderly experience kit. From the experimental result, increase in swing up angle of thigh was observed. Thus, effectiveness of the walking assist function in the developed assist suit was verified.