Abstract: To excavate excellent germplasm resources，the characteristic variations among the ripening fruits of 35 randomly chosen progeny seedlings from the totally planted 28 000 wild myrobalan plum（Prunus cerasifera Ehrh.）seedlings were preliminary investigated in the orchard located in Jiaozhou，
Shandong. This research provided basic data for scientific protection and sustainable utilization of the wild resources of myrobalan plum. The results indicated that except shape index and the content of Mg，there were considerable variations in the fruit morphological traits，the content of anthocyanin，soluble solids content（SSC），fructose，glucose，sucrose，malic acid，oxalic acid，lactic acid，citric acid，succinic acid and mineral element（Ca，Fe，Zn）. The variation coefficients were above 10%. Statistic analysis showed that the variation was in line with normal distribution. Among them，the fruit weight variation ranges from 2.62–22.66 g with variation coefficient of 70.10%. It indicated that this group has the large potential for further selection. Forty-one elite plants were discovered from 28 000 seedlings according to fruit weight，rate of fruit set by other pollen and tree habit. Further more，we excavated seven excellent germplasm resources，whose fruit weight were above 11 g and soluble solids content were above 12%， including 3 types of large fruit，high-sugar and high-acid.

Key words: wild myrobalan plum, seedling population, phenotypic traits, elite and rare germplasmresources