Compact spinning is a new spinning technique in which to spun yarn on an improved ring spinning frame. Because the fibers of yarn are fully stretched, parallel to each other, and closely arranged before twisting, there is less hairiness in the yarn, especially above 3mm. Compared with the traditional yarn of the same size, compact yarn has a smaller diameter, so the cloth woven with the same array has good air permeability, neat and smooth surface, and is an ideal yarn for high-grade textiles.