Gas collector pressure is an important parameter in the process of coking production, because the stable pressure directly affect gas quality, life of coke oven, coke quality and the production environment in coke oven. By cascading the inverse system of the gas collector pressure in coke oven identified by LS-SVM with the original one, we decoupled the system of gas collector pressure into two independent pseudo-linear subsystems of SISO according to the characteristics of the gas collector pressure system in coke oven, such as strong external disturbances, non-linear and coupling relations, etc. Meanwhile, an internal model controller was introduced into the two subsystems to guarantee their robustness and stability. Simulation and application results show that the control strategy has good decoupling features, and improve the rapidity, tracking accuracy and robustness of the system. And the gas collector pressure can be controlled in reach the desired technology range.