Head rice rate is one of the important factors affecting the development of high-quality long-grain indica rice. In order to explore the suitable sowing date, harvest period and storage period of high-quality long-grain indica rice in the middle and lower reaches of the Yangtze river, three high-quality long-grain conventional indica rice were used as materials. The results showed that, with the delay of sowing date, the temperature decreased during the grain filling stage, which resulted in the significant shortening of the whole growth period, and the head rice rate, chalky grain rate, chalkiness ratio showed an overall downward trend. The daily average temperature was significantly positive correlated with the head rice rate, chalky grain rate and chalkiness ratio. High-quality long- grain indica rice was harvested at full maturity stage and stored for 40 d before processing, would have higher head rice rate.