Various kinds of non-metallic particles such as carbide, nitride, boride, and sulfide can be codeposited from electroless nickel plating bath. Most dispersoids were distributed uniformly in the Ni-P matrix. Taber Abrader test showed that silicon carbide has the highest wear resistance. Abrasion weight loss decreased with increasing amount of codeposits and reached a constant value above 2 percent by weight of SiC powder. The wear resistance of the heat treated SiC composite coatings was improved about three times than that of non-treated coatings. The SiC comosite coatings were more wear resistant than hard chromium. Boron nitride composite coatings showed lower friction coefficient than that of other conventional lubricating finishing materials. The electroless composite coatings would be very effective and usefull for many kinds of industrial functional parts from the standpoint of the excellent hardness and lubricity.