With japonica rice Tong He 833 and Tong He 838 as test materials, effects of row-spacing on growth anddevelopment, photosynthetic ratio and matter production of rice under different nitrogen application levels were stud-ied. The effect of row-spacing on plant height was insignificant. The leaf age progress of row-spacing treatment A（22.3 cm×22.3 cm） was accelerated, that help facilitate the development of growing development and grain filling.The row-spacing treatment A had remarkable advantages on improve rice tillering and effective tillering. Further-more the row-spacing treatment A also benefited to increase of leaf area index, photosynthetic rate, matter produc-tion and grain yield in Jilin Province. The increase of the number of tillers and photosynthetic rate were the main rea-son.