Abstract: For attaining a higher accuracy in positioning of personnel working in intelligent coal preparation plant, the UWB+IMU integrated accurate positioning system is developed through the Kalman filtering algorithm-based simulink simulation platform, and the effects produced in application of the system at Daliuta Coal Preparation Plant are introduced. Practice shows that the system has a higher personnel positioning accuracy and its use has great significance for enhancement of the level in management of personnel, safety and operation of plant.