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There are about 12,000 conservation trees which are old,big and rare enough to be protected by the central or local governments in Korea.Although it is not common,transplanting important old trees in critical situations due to urbanization and industrialization is necessary.The previous methods of transplanting trees required strong pruning for controlling the T/R balance and large root ball usually two to five times of the stem diameter.Nonetheless the method could not prevent the old trees from death.As a result the death rates of the transplanted old trees were close to 100%.A new method using Lifesoil which is a peat-based soil material was introduced to transplant a 750 year old Yong-Gye gingko tree (Gingko biboba L.,National Monument No.175).This paper explains how the 750 year old tree was transplanted to a position which is 17m higher than the original position over a 36 month period.The main differences between previous and new method are light pruning-about 15% of the branch,reducing root ball size to 1.5 times of stem diameter and helping photosynthesis to promote the growth of new roots.The transplanting was successful.It took about a year to growth new roots.Further study on peat-based soil materials with new enzymes will be carried out to enhance new root development in the future.