To　avoid　high　crack　sensitivity　of　TiB-Ti　composite　coating　during　laser　cladding　process,　network-like　structure　composite　coating　was　fabricated　with　laser　in-situ　technique　on　titanium　alloy　using　5　mu　m　TiB2　powder　as　the　cladding　material.　The　microstructure,　phase　structure　and　properties　of　the　coatings　were　analyzed　by　SEM,　XRD,　EPMA,　TEM,　hardness　tester　and　fretting　wear　meter.　It　was　observed　that　the　outer　ring　of　the　network-like　structure　was　mainly　TiB　strengthening　phase,　while　the　inner　ring　was　alpha-Ti　grain,　and　the　interface　between　TiB　and　Ti　matrix　was　very　clean　and　had　a　consistent　orientation　relationship.　The　hardness　of　the　cladding　layer　with　network-like　structure　gradually　decreased　from　the　surface　toward　the　interface,　but　the　average　hardness　was　nearly　two　times　that　of　the　substrate.　In　the　fretting　wear　test,　it　was　found　that　the　wear　resistance　of　the　cladding　layer　with　network-like　structure　was　larger　than　that　of　the　substrate　under　low　load　(40　N).　The　results　revealed　that　the　hardness　and　fretting　wear　resistance　of　the　titanium-based　composite　coating　could　be　improved　by　the　introduction　of　network-like　structure.