Abstract: In order to protect the ancient Cinnamomum camphora grown under different environments， the different growth environment were surveyed and the soil under the 34 ancient Cinnamomum camphora were analyzed. The results showed that the soil under the ancient Cinnamomum camphora in different growth environment had remarkable difference. On the whole， the soil under the ancient Cinnamomum camphora had adequate nitrogen and potassium， but a little shortage of phosphorus.

Key words: Hangzhou West Lake, ancient Cinnamomum camphora, growth environment, protection