Abstract: To improve apple dwarf stock breeds and study dissociation characteristics on dwarfing performance and performance of promoting flower and fruit, cultivar plants were grafted on hybridization F₁ generation plant from apple dwarf stock Y-B094, dissociation characteristics and correlation of the 10 character indexes were investigated and analyzed, and the grafted plants were classified. The results showed that the investigated 10 character indexes of hybridization F₁ generation from apple dwarf stock Y-B094 had greatly improved variety selection potential. Height was quantitative inheritance, the other characters were qualitative inheritance. There was highly significant negative correlation between height and flower number from terminal bud on main branch. But correlation between height and fruit number from terminal bud number on main branch was not significant. Height had highly significant or significant positive correlation with other characters. Hybridization F₁ generation from apple dwarf stock Y-B094 was divided into 3 classes by clustering analysis. Dwarfing property indexes could be reference indexes of apple dwarf stock prolificacy in the early stage. Plants of the second class should be further selected, 129＃plant could be further investigated and selected as emphasis.