Abstract:So far about 72 species, 1 subspecies and 7 varieties had been validly published in Sect. Camellia. C. lienshanensis of Sect.Corallina and C. arinlngensis of Sect. Paracamellia were in- cluded in this section. Through study and revision, 12 species and 6 varieties were defined, others were reduced into relevant species and varieties as synonyms. Individual variation of species were discussed with the differentiation, distribution and natural hybridization.