High　entropy　alloys　with　excellent　mechanical　properties　have　broad　application　scope　and　market　demand.　However,　a　long-standing　problem　for　these　alloys　is　their　low　ductility.　In　this　work,　a　novel　alloy　(Ni6Cr4WFe9Ti)　with　fine　grained　structure　was　prepared,　which　exhibited　fracture　strength　of　over　970　MPa　and　tensile　elongation　as　large　as　~12.2%　at　room　temperature.　The　processing　route　involved　additive　manufacturing　via　a　selective　laser　melting　technique　which　resulted　in　an　optimal　microstructure　of　fine　grains　with　nanoparticles　uniformly　distributed　in　the　matrix　alloy.　This　approach　can　effectively　refine　the　crystalline　structure　and　the　coarse　grain　boundary　precipitates,　to　provide　a　general　pathway　for　manufacturing　fine　grained　material　with　both　high　strength　and　ductility.　©　2019　Elsevier　B.V.