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In this study, we investigated and researched the growth situation of 18 kinds of tree species in the stand improvement plot of environmental protection forests along the hill which is behind the ceramics factory of Gaoming District, Foshan City, Guangdong Province, and we implemented growth situation comparison and cluster analysis of ground diameter, tree height, crown width and clear bole height about these18 kinds of tree species. The result showed that: Michelia macclurei and Schima superba grew the best and had the largest volume of comprehensive growth, and 12 tree species-Ficus altissimo, Syzygium rehderianum, Heteropanax fragrans, Nerium indicum, Acronychia pedunculata, Mytilaria laosensis, Tutcheria championi, Ilex rotunda, Alstonia scholaris, Helicia cochinchinensis, Cinnamomum bodinieri and Carallia brachiata grew well and had a relatively large volume of comprehensive growth with an initial fast-growing result, which could be applied in environmental protection forest.