Abstract: With the increase of waste textiles year by year, traditional treatment methods are difficult to meet the strict environmental protection requirements and demand for resourceful recycling. Waste spinning pyrolysis char coupled coal-fired power generation is a resource utilization technology of waste spinning with industrial application prospects. A 300 MW coal-fired unit built by Aspen Plus is used to simulate the waste spinning pyrolysis char coupled coal-fired power generation process, with part of the pyrolysis oil and gas used for drying and pyrolysis process heat supply, the remaining pyrolysis oil and gas is sent to the boiler for blending combustion. On this basis, the simulation results and economic analysis show that: with 300 t/d of waste spinning consumption, the system payback period is 4.65 years, which generates an annual profit of 10.18 million yuan compared with pure coal combustion. Increasing the proportion of char blending can further improve the economy of the system, when the proportion of char blending is increased from 5% to 25%, the profit per unit of fuel is increased from 10.37 to 37.20 yuan/MWh. Sensitivity analysis shows that the change of waste spinning price >transport distance >carbon tax price, when the expected payback period is 6 years, the highest critical values of waste spinning price and transport distance are 377.27 yuan/t and 92.42 km. The study shows that the waste spinning pyrolysis char coupled power system is less risky, which provides a new path for the resource treatment of waste spinning.