The invention discloses a solid seal pole and a soft connection assembly thereof. The soft connection assembly of the solid seal pole comprises a soft connection conductor and soft connection. The soft connection conductor is provided with a fixed matching face which is fixedly connected with the soft connection. The soft connection conductor comprises a connection part which is connected with one end of the soft connection and a yielding part which is located at the upper end of the connection part. The soft connection conductor is shaped like a stepped shaft, wherein the upper end is fine, while the lower end is thick. The fixed matching face is formed by the circumferential plane of the connection part. When the soft connection is fixedly connected with the side of the connection part of the soft connection conductor, an interval is between the upper side of the connection end, which is connected with the connection part, of the soft connection and the side of the yielding part. When welding is carried out, after weld seams on both sides of the joint of the connection end of the soft connection and the side of the connection part are welded, a horizontal weld seam can be welded above the joint. The soft connection and the soft connection conductor are reliably connected. The weld seams are not easily torn.