Abstract The mixing performance of cross flow was studied in turbine ejecting mixer with tracing technique.The flow parameters such as the adhesion-wall effect of jet,penetration proportionlity of jet,momentum ratio,Reynold's number and incorporation time,which affect the mixing quality were analysed.The results showed that turbine ejecting mixer was a rapid mixing apparatus with good mixing process of little mixing space,good mixing uniformity and high volume ratio of medium and anticratering spray nozzle.