By means of powder electrical explosion spraying of continuously carrying powder with pressure-sensitive adhesive, WC coating was prepared. The effects of initial voltage and the cross-sectional area of jet chamber on the forming of coating were analyzed. The result shows that in the distance of 3~7 mm, hybrid coating is formed which consists of a surface for liquid spraying coating and a bottom for vapor deposition coating. When raising the initial voltage within minor cross-sectional area of jet chamber, the temperature and the velocity of the blast area can be increased to raise vapor share. It is thought that vapor deposition coating is formed preferentially and combined with substrate densely. Residual droplets spurt is lagged, and liquid spraying coating is formed which covers the vapor deposition coating.