Set different treatments of N，P，K for 20 years Korla fragrant pear in the field，and determines the contents of seven mineral elements in Korla fragrant pear by atomic absorption spectrometry (AAS)The results showed that the contents of Ca，Mg，Fe，Na in Korla fragrant pear were relatively high，but the contents of Zn，Cu，Mn were relatively low Compares with not to fertilize，it could improve the contents of Ca，Mg，Fe，Zn，Cu，Mn，Na in Korla fragrant pear to apply fertilizer in soil The role of fertilizer N，P and K to content of Ca was in order of P＞N＞K，the contents of Mg，Fe，Zn，Cu were in order of N＞K＞P，the content of Mn was in order of K＞N＞P，the content of Na was in order of N＞P＞K.