Hexagonal　boron　nitride　(h-BN)　fibers　and　flowers　were　synthesized　with　a　facile　synthesis　route.　The　precursor　was　obtained　as　an　intermediate　material　by　the　reaction　of　KBH4　and　NH4Cl　at　120 °C　for　48 h.　h-BN　was　obtained　by　heating　the　intermediate　material　at　1250 °C　for　10 h.　The　sample　obtained　was　characterized　by　X-ray　powder　diffraction　(XRD),　Fourier　transformation　infrared　spectroscopy　(FT-IR),　thermogravimetry　(TG/DTA)　and　environment　scanning　electron　microscopy　(ESEM),　which　matched　with　h-BN.　ESEM　image　indicated　that　the　diameter　of　the　BN　fibers　is　mainly　in　the　range　of　1-2 μm.　©　2006　Elsevier　B.V.　All　rights　reserved.