The objective of this study was sought theoretic support for mechanized transplant scheme of super rice.The split plot experiment was adopted to research the effect of three factors（fertilizer rate,transplanting density and seedling per hill） on the yield of’Jijing 88’and’Jijing 102’.Results showed that for fertilizer tolerance variety of’Jijing 88’,high yield was gotten in higher fertilization,density and seedling per hill.For wide suitable variety of ’Jijing 102’,high yield was gotten in suitable density,seedling per hill and less fertilizer rate.The suitable seedling per hill of different super rice varieties was different under different fertility conditions.In order to raise the yield of super rice under low fertility and density,we can increase seedling per hill by adding more effective panicles per hill.But under high fertility and density,if seedling per hill was too high,the group quality may deteriorate to reduce production.