Electron　backscattering　diffraction　(EBSD)　investigations　were　carried　out　on　three　ultra-thin　TiNi　rolling　sheet　samples　with　thickness　of　0.15,　0.2　and　0.3　mm,　respectively.　The　microstructure　and　texture　evolution　were　investigated　as　a　function　of　the　sheet　thickness.　The　automated　EBSD　system　allows　integrating　the　grain　boundary,　grain　size　and　the　preferred　orientation　information　to　be　revealed　simultaneously.　By　ODF　analysis,　the　preferred　orientations　are　revealed　as　{111}　＜0＜(1)over　bar＞1＞,　{223}　＜0＜(2)over　bar＞1＞,　and　{332}　＜1＜(1)over　bar＞0＞　in　the　three　TiNi　sheets.　The　{111}　＜0＜(1)over　bar＞1＞　component　evolves　stronger　with　reducing　the　thickness　of　the　rolling　sheet.　(C)　2005　Elsevier　B.V.　All　rights　reserved.