In order to optimize the process and reduce the coke burning loss rate，single factor and multi-factor analysis have been carried out for the burning loss rate of 150 t/h CDQ，and the relevant model has been established. The results show that the coke burning loss rate is affected by various conditions of coke dry quenching; and the coke burning loss rate increases with the reduction of the circulating gas CO concentration and the increase of the irculating air volume；The operating parameters such as ratio of gas to coke，gasification rate，coke discharge temperature，circulating gas

CO concentration and material level are selected for multi-factor regression calculation with the coke burning loss rate. The results are close to the burning loss rate calculated by carbon balance method.

This multi-factor regression model can be used to predict the coke burning loss rate.