Al'adun shayi na kasar Sin yana nufin yadda ake shirya shayi da kuma lokutan da mutane ke cin shayi a China. Al'adar shayi a China ta bambanta da ta a ƙasashen Turai kamar Biritaniya da sauran ƙasashen Gabas da Kudu maso Gabashin Asiya kamar Japan, Koriya, Vietnam a cikin shiri, ɗanɗano, da kuma lokacin da ake cin sa. Har yanzu ana cinye shayi a kai a kai, a lokuta na yau da kullun. Ban da kasancewar shahararren abin sha, ana amfani da shi a cikin magungunan gargajiya na ƙasar Sin har ma a cikin abincin ƙasar Sin. Ana kiran manufar al'adun shayi a cikin Sinanci chayi ("fasahar shan shayi"), ko cha wenhua ("al'adun shayi"). Kalmar cha (荼) tana nufin abin sha wanda aka samo daga Camellia sinensis, shuka shayi. Kafin ƙarni na 8 KZ, an san shayi tare a ƙarƙashin kalmar 荼(pinyin: tú) tare da adadi mai yawa na sauran tsirrai masu ɗaci. Waɗannan haruffan Sinanci guda biyu iri ɗaya ne, in ban da ƙarin bugun a tsaye a cikin harafin 荼 na Sin, wanda ke fassara zuwa shayi.