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Height, stem diameter, crown length and diameter, and branch angle of Aviccenia Marina were surveyed at three sites such as high-tide belt, mid-tide belt, low-tide belt in Techeng Island Zhanjiang, and their growth performance and crown characteristics were compared. The results showed that there was no significant difference of crown diameter and crown area while significant difference of height, stem diameter, crown length and crown volume among the three sites; the crown volumes of mid-tide belt, high-tide belt, low-tide belt were 31.522m3, 15.794 m3, 14.446 m3, respectively; the crown volume were remarkably correlated with tree height, crown length and crown diameter at all three sites, while significant positive correlation between crown volume and stem diameter was only revealed at mid-tide belt; the frequencies of branch angle accorded with normal distribution, their peak value occurred between 61 and 80 degree for level 1 branches, and between 41 and 60 degree for level 2 branches.
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