To provide an electrolytic plating device of a long member which can achieve uniform plating film thickness distribution in a single member and a large number of members by using the electrolytic plating which can easily reduce the manufacturing cost and any loads on the environment.

This electrolytic plating device comprises a sash member 20 which has a rotary shaft 14, and is provided with a large number of through holes 16 in an outer circumferential side surface, and protruded from an inner circumferential side surface 12b of a barrel 12 to accommodate a bar-like long member S inside, and at least one bank member 22 which is provided on the sash member 20 and extended parallel to the rotary shaft 14.