Abstract: Plums have the characteristics of easy planting，fast growth，early blossom and bearing．The research indicates that in the three varieties of Huahong，Jinsha and Prunus salicina，Prunus salicina and Huahong have higher economic value．Rational planting density can improve their yields and production values，while gibberellin can prompt their blossom and bearing．It can be achieved good economic effects to plant Huahong and Prunus salicina in Southeastern Yunnan with 2m×3m of spacing between plant and row，to spray 200mg／kg gibberellin once in blossoming and fruiting periods respectively，and to interplant short-pole crops．