BaO　and　TiO2　reacted　and　produced　BaTiO3　in　the　process　of　sintering.　As　a　result,　the　diffraction　peaks　of　BaTiO3　became　stronger　with　the　increasing　BaO/TiO2　contents.　The　diffraction　peaks　of　NiAl　shifted　smaller　angle　to　left　with　the　addition　of　BaO/TiO2.　Meanwhile,　the　lattice　distortion　obviously　occurred　in　the,　composite　structure.　The　composites　with　the　addition　of　BaO/TiO2　presented　high　microhardness　and　yield　strength　as　well.　The　composite　with　20%　BaO/TiO2　had　the　highest　microhardness　value　and　yield　strength　of　474.5　HV　and　2786　MPa,　respectively.　The　friction　coefficient　and　wear　rate　of　the　composites　decreased　with　the　addition　of　BaO/TiO2　and　the　NiAl-30%　BaO/TiO2　composite　had　the　lowest　friction　coefficient　at　800　degrees　C　test　temperature.　The　BaTiO3　was　decomposed　to　BaO　and　TiO2　during　high　temperature　sliding.