Abstract: The changes of content of several mineral nutrient elements，including Cu，Zn，Fe，Mn，Ca，Mg，K in leaves，flowem and fruits of Cerasus humilis growing period were analyzed’vith an atomic absorption spectrophotometer and the correlation among the changes of these elements was also studied．The reset showed that the flowering phase of Cerasus humilis was the key period for the absorption and cumulation of mineral nutrient elements． In the whole phase from start to end，the increase of content of element Fe，Ca， Mn Was remarkable， but there Was no evident increase or decrease for that of other elements．After flowering phase，the content of seven mineral elements keep hish in former period and low after that． There appeared a changing trend of descend-plane(ascend)-descend in content of all seven mineral element．There was a significant positive linear relationship of content of 6 elements in flower and fruit of Cerasus humilis，except element K． When compared 山that in leaves，only Ca and Mg had a significant positive linear relationship，Zn had a significant negative linear relationship and there were no sign ificant corelation in that of other elements． The sequence of 7 elements by the average content in fruit was K>Ca>Mg>Fe>Zn>Mn>Cn．

Key words: Cerasus humilis, Fruit, Flower, Mineral nutrient, Dynamic law