Abstract: In order to discuss the effect of actual nutrient supply on content in leaves in basal fertilizer, and provide the theoretical evidence for pear tree fertilization, the sand pear cultivar‘Akiba’(Pyrus serotina‘Akiba’) was used as experimental materials in 2010 and 2011. The content changes of main nutrient elements, nitrate nitrogen and ammonium nitrogen in leaves of treatment trees to which chicken manure and rape seed cake were applied severally as basal fertilizers were compared during growing period. The results showed that: no significant differences in the content changes of total nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), iron (Fe) and copper (Cu) in leaves were found between the two treatment trees during growing periods for two years running, but applying rape seed cake as basal fertilizer could increase the contents of manganese (Mn) and zinc (Zn) in leaves during growing period. It was found that the influence of basal fertilizer on the content of ammonium nitrogen in the leaves was greater than that of nitrate nitrogen, and the content of ammonium nitrogen in the leaves of the trees treated by chicken manure was higher than that of trees treated by rape seed cake before mid-June, then reversed in early August. The author believed that the effects of basal fertilizer types on the content changes of nutrient elements in the leave had the close links with the kinds of nutrient elements, but the contents of nutrient elements in the leave were not related to actual supply of nutrient elements in basal fertilizer used in the experiment.