The number of guide-bar of less guide-bar warp knitting machine with EL type electronic shogging mechanism is less than six generally. This warp knitting machine has a wide application for it has an advantage that its vertical pattern cycle is unlimited. The author described characteristics and purposes of warp knitting machine with computer. The advantages of using less guide-bar knitting machine lines in development and production of underwear, outwear, decorative and body shaping fabric and etc. The author also elaborated the approaches of fabrics development with less guide-bar warp knitting machine of various models.