Based on 329 samples from 28 counties of Fujian Province, components of essential oil were analyzed by GC-MS. The results showed that there was higher content of essential oil in Cinnamomum camphora (L.) Presl leaf from Fujian Province(mean content 1.084%).58 compounds were identified and their relative contents were determined by normalization method of areas. 58 compounds represented 96.909% of total peak areas. Its main compounds included linalool(43.732%), camphora(14.431%), 1,8-cineole(10.457%), safrole(7.079%), α-terpineol(2.570%), and β-phellandrene(2.231%), etc. These constituents represented 80.5% of total peak areas.