Abstract: In order to meet the demands of high speed weaving and diversified varieties of fabric,the let-off motion must be controlled accurately since electronic let-off system of loom has faced some new requirements.The traditional PID controller can not meet the requirements because of its typical complicated,tandem driving,time changing and non-liner winding system.Targeting the shortcomings of the traditional PID controller in loom electronic let-off and take-up motion control,a Fuzzy-PID tension controller is proposed for effective settlement of the problems of dynamic change of the non-liner system.Simulation by Simulink of MatLab is carried out on the basis of SAURER400 loom.The simulation experimental results indicate that the parameters of Fuzzy-PID are better than those of routine PID.This control method has good application potential for electronic let-off system.