The　prospect　of　applying　Brain-Computer　Interface(BCI)　to　medical　treatment　and　rehabilitation　engineering　has　been　attracting　researchers　around　the　world.　However,　the　patients　who　use　Chinese　always　confront　more　difficulties　when　they　are　attempting　to　transmit　their　intentions　by　BCI,　because　the　current　BCIs　are　short　of　the　capability　of　supporting　Chinese　input.　Thus,　we　developed　a　brain-controlled　Chinese　pinyin　input　platform,　intending　to　provide　Chinese　participants　in　research　or　application　of　BCI　with　more　conveniences.　On　the　platform,　the　procedure　of　inputting　a　Chinese　character　includes　4　selecting　steps:　consonant,　vowel,　tone　and　character.　We　designed　3　different　6×6　symbol　matrices　for　selecting　consonants,　vowels　or　characters　and　a　special　line　of　symbol　for　selecting　tones.　All　the　4　selecting　steps　were　achieved　by　detecting　P300　elicited　target　symbols.　Based　on　this　platform,　we　have　carried　out　a　number　of　BCI　studies　with　Chinese　background.　©　2019　IEEE.