To clarify the characteristics of dry matter accumulation and dry matter spatial distribution of super rice under different ecological and fertilization conditions, a field test was carried out with the super rice varieties Longdao 5 and Songgeng 9 as experimental materials, which were suitable for planting and producing more in Mudanjiang area of Heilongjiang province, and taking Mudanjiang 28（V3） as the control. The results showed that the dry matter accumulation of the same varieties under low nitrogen conditions was less than that of under high nitrogen conditions, and dry matter accumulation of super rice varieties were similar in different test areas, the dry matter accumulation was faster in the middle and late stage, which was generally characterized by “small in the front, stable in the middle and high in the back”. Dry matter of rice was evenly distributed within a space of 0~100 cm. Dry matter of middle and upper layers of Longdao 5 and Songgeng 9 were higher, and the storage of single-stem matter was significantly higher than that of Mudanjiang 28. The dry matter weight of each layer of rice stems decreased with the increase of height. The dry matter accumulation of each layer among different varieties of the same fertility showed that the bottom layer was Mudanjiang 28> Longrice 5> Songgeng 9, and the uper layers were Songgeng 9 > Longrice 5> Mudanjiang 28. Under the condition of the same variety with different fertility, the dry matter accumulation of each panicle with low nitrogen was less than that of high nitrogen. High grain number per panicle and seed setting rate were the main reasons for high yield of super rice. Under the different soil fertility conditions, super rice varieties showed higher fertility and fertilizer tolerance.