The effect of four different types of surfactants on the microstructure and wear resistance of the composite micro-arc oxidation( MAO) coatings containing hexagonal boron nitride( hBN) solid lubricating particles were studied in order to get composite micro-arc oxidation coatings with good wear resistance on titanium alloy. The results show that surfactants have a significant effect on the microstructure and wear resistance of the composite micro-arc oxidation coatings. Cationic surfactant cetyl trimethyl ammonium bromide decreases the content of hBN in the coating and weakens the coating/substrate bond strength,which is not conducive to the improvement of the wear resistance of the coating;nonionic surfactant absolute ethyl alcohol makes the decline in the density of the coating due to its strong volatility,thus reducing the wear resistance of the coating; anionic surfactant sodium dodecyl benzene sulfonate has little effect on the structure and wear resistance of the coating; anionic surfactant sodium carboxymethyl cellulose is effective in improving the dispersibility of hBN particles in the electrolyte,thereby improving its complex and uniform distribution in the coating,thus significantly improving wear resistance of the composite micro-arc oxidation coating.