In this study， 102 species of angiosperms grown in the campus of Huazhong Agricultural University collected by Shishanlanzhi were systematically classified， and their mature leaves were sampled to determine the ions composition for the clarification of the ionome of angiosperms and their relationship with plant species， and the differences and connections in the ionome composition of the leaves of angiosperms from different families. The concentrations of mineral nutrients included nitrogen（N）， phosphorus（P）， potassium（K）， calcium（Ca）， magnesium（Mg）， sulfur（S）， iron（Fe）， manganese（Mn）， copper（Cu）， zinc（Zn）， boron（B）， molybdenum（Mo）and nickel （Ni） in the leaves were determined. The ionic fingerprints of these plants were established and the ionic components of these plants and their relationship with plant species were analyzed. The results showed that the concentrations of N， K and Ca were the highest， and that of seven micronutrients were the lowest in the leaves. The N concentration in the leaves of leguminous plants was higher than those of plants of other orders， while the P and K concentration in the leaves of caryophyllous plants was higher than those of plants of other orders. The concentration of seven micronutrients in the leaves of these 102 angiosperms also showed significant differences. Correlation analysis showed that there were significant correlations between each mineral nutrient and at least four other mineral nutrients in the leaves. Among them， the concentrations of Ca significantly positively correlated with the concentrations of Mg and B in plants. Additionally， there were highly significant positive correlations among N， P and K. However， there was a highly significant negative correlation between Zn and Ca， Mg， P， and Mn. Principal component analysis showed that the leaf ionome of plants in the same family were similar， but the leaf ionome of plants in different families were different. Cluster analysis showed that Ca， N， K， S， Mg， P have a great contribution to the variation of plant ionome in different families. These results indicated that the phylogeny of angiosperms is closely related to the leaves ionome， and the ionome in leaves of plants in the same family exhibit high similarity. We may be able to identify plant species by their leaf ionome.