Grain　boundary　character　distribution　(GBCD)　of　cold-rolled　CoCrFeMnNi　high-entropy　alloy　during　800℃　annealing-induced　recrystallization　were　investigated　by　means　of　electron　back　scatter　diffraction　(EBSD).　The　results　show　that　during　primary　recrystallization　process　induced　by　annealing　for　0.08　h,　low　∑　coincidence　site　lattice　(CSL)　boundaries　of　56.92%　(length　fraction　of　total　boundaries)　are　introduced,　including　∑3　boundaries　of　53.04%　and　∑9+∑27　boundaries　of　2.12%;　most　low　∑CSL　boundaries　are　distributed　in　the　network　of　general　high　angle　boundaries　(HAGBs)　and　the　GBCD　is　optimized.　As　annealing　time　increases　from　0.08　h　to　10　h,　processes　with　abnormal　grain　growth　and　subsequently　with　secondary　recrystallization　occur　and　volume　fraction　of　strong　α-{110}　fiber　texture　increases　from　49.53%　to　66.65%;　the　proportions　of　low　∑CSL　boundaries　and　those　of　∑3　boundaries　decrease,　while　the　total　proportions　of　∑9　and　∑27　boundaries　first　increase　and　then　decrease,　resulting　into　a　tendency　of　the　network　connectivity　of　HAGBs.　Meanwhile,　the　relation　between　Vickers　hardness　and　average　grain　size　satisfies　the　Hall-Petch　relationship.　©　2016,　Editorial　Offce　of　＂Jinshu　Rechuli＂.　All　right　reserved.