Abstract: sowing and transplanting on different dates is a convenient way to study rice growth, yield components and optimal sowing date. Effect of sowing date on rice growth and yield components were analysed by sowing and transplanting on different dates in this study． The research were carried out in two rice types,named Liangyou6326,Nangeng44. results show that along with sowing date postponing,whole growth period of these two kinds of rice were shortened. grain filling rate of Liangyou6326 improved as sowing date postponing, while grain filling rate of Nangeng44 in Full growth period greatly improved in D2 date of seeding, and in other stages shows different situation. yield and yield components cut down along with sowing date postponing, but the highest theoretical yield of Nangeng44 appeared in D3 date of seeding, The lowest theoretical yield of Nangeng44 appeared in D2. In addition, through the correlation analysis between the different stages of accumulated temperature, daily mean temperature , sunshine duration number and each stage of grain filling rate, yield and yield, the effects under different temperature and light conditions was concluded.