The　effect　of　ultrasonic　vibration　on　the　microstructures　and　mechanical　properties　of　the　as-deposited　and　the　solution-aging　treated　forming　parts　is　investigated　during　the　laser　cladding　deposition　of　Ti6Al4V　alloys.　The　research　results　show　that,　the　ultrasonic　vibration　during　deposition　can　reduce　the　surface　roughness　and　residual　stress　of　forming　parts,　which　makes　the　β　columnar　grains　refined,　and　the　strength　and　elongation　of　the　forming　part　increase　slightly.　As　for　the　forming　parts　after　solution-aging　treatment,　a　mixed　structure　composed　of　equiaxed　α　phase,　basket-shaped　flaky　α　phase　and　converted　β　phase　is　formed.　However,　the　grains　are　still　small,　the　elongation　is　relatively　high,　the　plasticity　increases　significantly,　and　the　strength　decreases　little.　The　comprehensive　mechanical　properties　overpass　the　forged　part　standard.　©　2018,　Chinese　Lasers　Press.　All　right　reserved.