Abstract: In order to control the smoke phenomenon during the coke discharging from the coking oven, the smoke and dust sources during the coke discharging fr om the coking oven in the Coking Plant of Taiyuan Town Gas Company were analyzed.In the comparison with three smoke and dust control alternatives, the second dus t control system added on the coke receiving car was proposed to solve the smoke and dust problem.The applied results showed that the smoke and dust during the Co ke discharging was effectively controlled after the second dust control system measure applied.