An object of the invention is to provide a cable support member having high durability and excellent manufacturing performance. A cable support member of the invention includes: a plurality of holding members; and an elastic member. Each holding member has an elastic member insertion passage through which the elastic member is inserted, and has joint surfaces enabling a rotation of the holding member with coming into contact with the adjacent holding members at both sides in the longitudinal direction. The elastic member is inserted through the elastic member insertion passages in the holding members so as to align and maintain the holding members, and exerts a compression force on the holding members. With such a configuration, a neutral state where the cable support member is substantially in a linear fashion and a curved state where the cable support member is bending-deformed are obtainable.