The favourate date for Raising Seedling and transplanting of Hybrid Rice is analyzed. It is showed that the temperature of start seeding date is above 86℃ of five day sequence mean temperature in the third dekad of March and is above 80℃ in the first dekad of April.The temperature of start transplanting date is that of the assurance rate is above 80% of mean daily temperature steadily passing through 16℃ with the consideration of high product rice age and the factor of secure blooming. It is ultimately determineded according to local weather forcasting,rice growing and the former crops harvesting.