Current Research Brushless dc motor (BLDC) is very popular in wide variety of applications. In comparison to conventional dc motor, the brushless dc motor having electronic commutator rather than mechanical commutator, so it is more reliable than the dc motor. BLDC motors are commonly used in high end white goods (refrigerator, washing machine, dish washer etc.), high end pump applications which require higher reliability and efficiency. This paper proposed a new method for sensor less speed control of high-Speed brushless Dc motors with higher reliability of the motor. The sensor less BLDC motor based on back EMF sensing and a rotor position angular detection value. The Nonlinear characteristics of Sensor less BLDC motor analyzed using (TZ) fuzzy model in MATLAB. Simulated Results shows proposed control method superior than conventional controllers.