Abstract: Big tree transplanting is a common planting technique in the modern city plants landscape construction In this paper, the growth injury and recovery of African mahogany which were transplanted in different time were studied. The results showed that the growths of African mahogany at different ages had very significant differences. 1 to 2 year-old branches in different transplant age, the branch thick from 14.5 mm to 19.5 mm could be damaged, and the damage range was 0.79~0.88m After the cold damage, there was a great difference between the germination number of plants, but no great difference was found on the branch growth of different directions The branch growth in different seasons had a very significant difference, and the diameter and length in spring and summer were very significant larger than those in autumn and winter.