Based on the study of tillers and panicle formation in early rice with 3 cultivation methods, The author found that the tillers from 4，5 and 6 leaf position were main tillers. The panicle percentage from tillers in machine-transplanted, seedling throwing and hand-transplanted rice were 80.0%，80.0% and 95.8%，and the contributive rate to yield were 49.8%，46.6% and 60%, respectively. The panicle type of machine-transplanted rice was bigger, and had bigger contribution to yield.