Abstract: This paper describes the software and hardware composition of the overweight dobby loom control system,there are 20 harnesses whose lifting is controlled by 20 air cylinders on the dobby device,and 3 shuttle boxes on both right and left sides of the loom,the gearing of shuttle box on each side is controlled by 2 air cylinders and the direction of picking is controlled by one electromagnet.The specific method on the overweight dobby loom′s control system is realized,the loom shaft angle is fed back by a photoelectric encoder,the input and edition of electric pattern card is realized and all process parameters are displayed on human-machine,so the loom is provided with multi-function such as electronic dobby device,electronic multi-shuttle box control and picking control.Besides,the loom′s working sequence and the flow chart of control system is given.