Abstract: To investigate and indentify the superior mode among big, middle and small shed dry nursery methods in japonica rice regions in North China, taking ‘Tongyin58’,‘Tonghe836’ and ‘Tonghe835’ as test materials, the author conducted statistic analysis of the active and effective accumulated temperature, seedling quality of big/middle/small shed dry nursery methods, which were used at present in japonica rice regions of Jilin Province. The active and effective accumulated temperature levels at given time were the same of different dry nursery methods, and the result was as follows: big shed>middle shed>small shed. The times when the thermometer reading above the biological high temperature of rice of different dry nursery methods showed the result as: big shed>small shed>middle shed. The times when the thermometer reading below the biological low temperature of rice of different dry nursery methods showed the result as: small shed>middle shed>big shed. There were significant differences of rice seedling quality of different dry nursery methods on plant height, root number, aboveground dry weight and emergence rate, and the performance trend was as follows: big shed>small shed>middle shed. The leaf age and stem number in the big shed had the highest value among the three nursery methods, while there was no significant difference between the small and middle shed. The aboveground dry weight between big shed and middle shed also showed no obvious difference, but the one of small shed was significantly lower than that of the other two. The big shed dry nursery method was promoted to be used in production, followed by the middle shed dry nursery method. But for the big shed dry nursery method, we should move up and extend the time of ventilation hardening-seedling. Small shed dry nursery method was suggested not to be used or used less in areas of low night temperature in Jinlin Province, if it was used, we should pay attention to the low temperature at night and take the insulation measures.