Cultural techniques of rice high—stable yield at five ecologic environments (eg. five rice plant regions)have been studied. For 3 years, we have completed the task. Total area using the techniques was 161600 ha, and the averaged yield was 7572kg/ha, 10% higher than CK. The total rice production was increased by 151 million kg, income was increased by 126 million yuan during 3 years. Five techniques on variety selection, culture strong rice seedling and sparse plant, balanced apply fertilizer, economizing on water culture all had signifcant results. Through studing and demonstration, a standardized cultural technique of high-stable yield (7.5—8.0 t/ha) in five ecological conditions was put forward, and will be developed in Jilin and north of China.