Abstract: Abstract: In order to explore the best density for the super-rice high-yield cultivation, an experiment was conduct so as to provide basis data for large area production. The results show that the yield was the highest when the planting density for yangliangyou6 was 12500 plexus/666.7 m2, the yield of rice increased with the increasing planting density when planting density is less than 12500 plexus/666.7 m2, the yield of rice decreased with the increasing planting density when planting density greater than 12500plexus /666.7 m2.Key words: Super-rice；different density；comparison experiment