Abstract: The capability of arc spraying was mainly affected by six factors, these are spraying current, spraying voltage, Wire feeding speed, gas pressure,spraying distance and spraying material. Each of these factors acts as a different role during spraying. Searching for the best combination of these factors has been for a long time, but the most of studies on the common material, such as T12A,T9A,70# and so on. In this paper, the experiment with rotary combination design was done on a new spraying material, the data of the experiment was dealt with computer, and the mathematical model was established. On the basis of mathematical model,each parameter's influence was analyxed, at last the best spraying parameters' value was obtained.