Abstract: Based upon the research of the Diagnosis System for Orientationally-Introduced Rice Varieties (DSIRV) in Sichuan, the principles of the DSIRV design and the methods for establishing a certain number of rice ecoclimate pattern and cultural technique are described in the paper. The results show that the DSIRV gains its success at a rate of more than 70%. And the DSIRV can cut short its whole procedure for introducing of a rice variety by 2 – 4 years less than the period the conventional way takes.