Abstract: In order to improve the yield and quality of grafted seedlings of Pinus koraiensis, and reveal the effect of intergeneric grafting with high branch, multiple heads and different age on trees growth and fruiting of Pinus koraiensis, this paper used the standard ground method and the time-space substitution method to study the high branch, multiple heads and different age Larix gmelinii on the same stock and different stock in 2008, and the tree growth and fruiting of intergeneric grafting Larix gmelinii in the return the grain plots to forestry of mountain area and plain land were investigated respectively. The results showed that:（1） in different sites, the breast height（DBH）, tree height and height under living branch of intergeneric grafting with high branch, multiple heads and different age Larix gmelinii in the return the grain plots to forestry of mountain area was higher that that of plain land. However the yield of return the grain plots to forestry of plain land was higher than that of mountain area. The fruiting characteristics of the plain land were both big fruit and continuous year fruit type, the fruiting characteristics of the mountain area was continuous year fruit type.（2） The difference of DBH, tree height, crown width and thickness of fruiting layer between the same and different stock grafting reached significant level（P＜0.05）, and the number of seed set reached a very significant level（P＜0.001）, indicating that the growth characteristics of the different rootstocks were fast at the initial stage.（3） The survival rate of high branch and multi head grafting was high, the early fruiting was very good and the grafting affinity was good. The survival rate was higher by using the methods of high branch, multi head and multi age grafting. After grafting for 6-8 years, the trees began to bear fruit. High branch multi head intergeneric grafting can promote early bearing and multi bearing.