Abstract: The nutrient structure of Amorpha fruticosa was studied during the growing season by analysing the nutrient contents of leaves, stems and roots of different diameter for C, N, P, K, Ca, Mg, Fe, Mn, Cu, and Zn. 1) The nutrient contents of N, P and K were the inverse of stem and root diameter (they reduced as the diameter increased). The highest contents were in the leaf, stem and thin roots. 2) There was no specific pattern of Ca, Mg, Fe, Mn, Cu, and Zn contents with stem and root diameters. 3) The correlation between trace elements was poorer than that between trace elements and macro-elements. Most correlation element pairs were in the stem, followed by the leaves, then roots. N, P, and K had the most relationships with other elements but C, Zn and Ca had fewer. 4) There was more organic carbon, N, Ca, Mn and Cu in the leaves than in the stems and roots of A. fruticosa during the whole growingh season. The order of macro-element content in leaves was C＞N＞K＞Ca＞Mg＞P, and the order of trace element contents was Fe＞Mn＞Zn＞Cu.