The　mechanical　properties　and　electronic　structures　of　TiC　and　TiN　with　different　doping　ratio　of　vanadium　(V)　are　studied　in　this　work　using　the　first　principles　calculations.　The　simulation　results　show　that　Ti1-xVxN　has　lower　formation　energy　than　Ti1-xVxC,　suggesting　higher　chemical　stability　of　Ti1-xVxN.　Ti0.25V0.75C　and　TiN　show　larger　hardness　than　other　Ti1-xVxC　and　Ti1-xVxN　compounds.　The　anisotropic　Young＇s　modulus　of　Ti1-xVxC　and　Ti1-xVxN　models　are　plotted　in　3D　surface　constructions,　and　VN　exhibited　the　strongest　anisotropy.　The　uniaxial　tensile　simulation　of　Ti1-xVxC　and　Ti1-xVxN　are　conducted　along　[111]　direction.　The　tensile　strength　of　Ti1-xVxN　is　stronger　than　Ti1-xVxC.　The　tensile　strength　increases　with　the　increasing　of　V-doping　ratio.　Furthermore,　the　electronic　structures　of　Ti1-xVxC　and　Ti1-xVxN　are　estimated.　The　modeling　techniques　used　in　this　work　and　the　calculation　results　are　helpful　for　systematically　understanding　the　properties　of　Ti1-xVxC　and　Ti1-xVxN　in　nanoscale.