Microwave digestion technique was used in the decomposition of Ginkgobiloba leaves from six different trees at the same age in the same area. HNO3-H2O2 (5∶1 v/v) was used as microwave digestion agent at a suitable temperatureand time. The contents of Ca, Mg, K, Na, Cu, Zn and Zn/Cu were determined byflame atomic absorption spectrometry to study the distribution rule of metallicelements in the trees at the same age and in the same area. The recovery ratioranged from 95.2% to 104.6%. The results showed that there were certaindifferences between different trees in the distribution of metallic elements. Thecontents of calcium were from 39 586 to 48 320 μg?g-1, and those of magnesiumfrom 10 076 to 12 918 μg?g-1, of potassium from 2 004 to 5 240 μg?g-1, ofsodium from 9.05 to 35.30 μg?g-1, and of copper from 1.50 to 3.05 μg?g-1,while Zn/Cu values were from 2.68 to 5.93 in the leaves of 6 different trees inthe same growing area. Therefore there were abounding calcium, magnesium andpotassium, while the content of sodium and Zn/Cu values were lower, and the metalcontents were different in the leaves. The experimental results provided usefulbases for studying the distribution rule of metallic elements in Ginkgo bilobaleaves, the relationship between the contents of calcium, magnesium, potassiumand sodium and the Zn/Cu value in ginkgo biloba leaves and the treatment forcardio-cerebral vascular disease.