Abstract: Based on NOAA/AVHRR characteristics of wide-ranging space coverage and frequent data reception, the best estimation time of forecasting rice yield in North China is explored, the forecasting model about per unit area yield is set up by using vegetable index, and rice planting area is estimated by remote sensing. The studying results for two years show that by means of satellite remote sensing to estimate rice yield, the forecasting accuracy is higher than that for the normal agrometeorological model forecasting, and the period of validity is improved.