In these ten years, the production of woolen fabrics has fallen by 20%. Due to global warming, people dressed in lightweight. And the heavy overcoats were neglected. Only raw materials with high requirements can spin the woolen around 30NM; but a lightweight worsted process is easy to reach. For example, the production of double-sided fabric requires lightweight worsted fabric; it’s easy to reach the requirement. If we use the worsted yarn as warp, woolen yarn as weft, or use new technology, we can obtain yarn with woolen appearance, soft and smooth fine style.