Ti-20Zr-15Ni-15Cu　filler　is　melted　in　the　magnetic　water　cooled　crucible.　XRD　is　used　to　detect　the　alloy　phases　in　the　filler,　and　the　result　shows　that　various　intermetallic　compounds　are　existed.　Spreading　experiment　is　taken　after　the　test　of　the　solidus　temperature　and　liquidus　temperature　of　the　filler　by　DSC　analyzer.　The　vacuum　brazing　is　processed　at　890°C×30　min,　930°C×60　min,　950°C×90　min　and　970°C×120　min,　respectively.　The　mechanical　properties　of　the　brazed　joints　were　tested.　The　microstructure　of　the　brazed　joints　brazed　at　970°C×120　min　were　analyzed　by　means　of　SEM　and　EDS,　and　Widmanstatten　structure　was　found　in　the　welding　seam,　and　the　mechanical　properties　of　these　joints　are　better　than　the　others　brazed　with　other　brazing　processes.　In　the　shearing　test　of　the　joints　brazed　at　970°C×120　min,　fracture　happened　on　the　base　metal.　The　microhardness　of　the　welding　seam　is　about　380　HV,　while　the　micro-hardness　of　the　base　metal　and　the　filler　is　280　HV　and　610　HV,　respectively.