Abstract: The contents of N、P、K、Ca、Mg、Zn、Fe、Mn in Ginkgo biloba seeds were determined and analyzed. The result shows that the annual dynamic in content of N、P、K、Ca、Mg presents a gradual decreasing trend from spring to autumn,but the decreasing range of every element is different in different growing stages of seeds. From the end of April to the middle of May and from the end of May to the beginning of June are two drastically decreasing stages in content of elements during the whole growing season. Annual contents variation of micronutrients (Zn、Fe、Mn) in seeds are various and irregular. The contents of nutrient elements between normal developmental seeds and dropped seeds are significantly different. The contents of elements in mature seeds are N:10.4 g/kg,P:1.3 g/kg,K:14.9 g/kg,Ca:1.3 g/kg,Mg:0.9 g/kg,Zn:27.6 mg/kg,Fe:10.0 mg/kg,Mn:3.2 mg/kg.The contents of N,K,Ca,Zn and Fe are higher in gingko seeds compared with those of other fruit trees.