Provided is a long line fishing that prevents a tubular sleeve from separating from the external circumference of a main line no matter how large force may be radially applied from the outside, reduces friction, and makes it possible to quickly and easily connecting a string to a simple connection hook of a swivel. The present invention may be implemented by fitting a plurality of tubular sleeve on a long main line at predetermined positions, disposing clover stoppers at both sides of the tubular sleeves at predetermined positions to prevent the tubular sleeve s from longitudinally moving, and protruding hook from the external circumference by striking the external circumference of the tubular sleeve with a punch through a hole.