Abstract: In order to provide basis for the better spread of‘Jindao 12’in the rice production in Shanxi Province and on the basis of 2007-2008 middle and late-maturing rice trial data in Shanxi, we made analysis on the high and stable yield of‘Jindao 12’by using the method of statistical analysis of regional data in the DPS data processing systems. The results showed that: the average yields of‘Jindao 12’over these two years were 9507 kg/hm2 and 9604.5 kg/hm2, which was 6% and 9.8% more compared to‘Jindao 8’. The main effects over the above two years were 0.78 and 0.71 respectively, indicating the high yield of‘Jindao 12’; its regression coefficients were 1.06 and 0.87 respectively, indicating that it was not sensitive to the environment; its high stability coefficients were 13.85% and 10.15% respectively in the above two years, indicating its stable and good yields. The panicles, the seed setting rates and the variation coefficients of ear length were better than its comparative groups. In conclusion,‘Jindao 12’is a new type of middle and late-maturing rice with high yield stability and with strong and wide adaptability. It has good grain quality and has better potentials if it is planted in better environment and with good cultivation techniques. It is suitable for industrial promotions.