Studies of panel experiment for attaching organisms were carried out in the Daya Bay,ShenZhen from April to October in 2008, and related environmental factors were tested. Detrended Correspondence Analysis(DCA) was performed based on the data of desity of attaching organisms, and the Canonical correspondence analysis (CCA) between the data of environmental factors and the density of attaching organisms was performed simultaneously. There were totally fifty\|four species identified. Results showed that the most common genera were Hydroides elegans, Balanus trigonus and Musculus mirandus. The results of DCA indicated that each attaching organism had its own distribution region; the results of CCA indicated that followed by temperature and salinity, depth, transparence and dissolved oxygen were the dominate factors in the distribution of attaching organisms,and CCA taxis fairly reflected the correlation between the distribution of attaching organisms and environmental factors.