Abstract: Open-air survey data of 990 quadrats from 110 plots in a Hebei grassland survey from 2005 to 2007 were combined with similar survey data from 1979 to 1984 to compare grassland production and relative changes between 2005-2007 and 1979-1984. 1) Annual total yield of fresh grass from 2005 to 2007 was 62 254 697.81 tons, with an average yield of 13 134.57 kg/hm². Total hay output of the grasslands in Hebei province amounted to 19 438 911.94 tons, with an average yield of 4 101.24 kg/hm²; 2) Grassland production (hay output) of warm temperate shrub-grassland reached 5 133.35 kg/hm², and was the highest among all the steppe types, followed by warm temperate tussock (4 182.22 kg/hm²), marsh grassland (3 376.13 kg/hm²), mountain meadow (in Bashang plateau district, 3 268.35 kg/hm²), temperate meadow-steppe (2 665.94 kg/hm²), mountain meadow (in mountain and hilly areas, 2 111.55 kg/hm²), lowland meadow (1 872.44 kg/hm²), and temperate steppe (1 103.29 kg/hm²). The three steppes types with the largest hay production were: Warm temperate shrub-grassland, arm temperate tussock, and mountain meadow, with production accounting for 56.04%, 20.85%, 18.13% of Hebei production respectively. 3) The average yield of hay production in Hebei province by administrative districts was: Cangzhou(7 134.40 kg/hm²)＞Baoding (6 981.15 kg/hm²)＞Chengde (4 850.26 kg/hm²)＞Shijiazhuang (4 677.78 kg/hm²)＞Handan (2 802.83 kg/hm²)＞Zhangjiakou (2 519.58 kg/hm²)＞Xingtai (2 436.47 kg/hm²)＞Qinghuangdao (2 227.55 kg/hm²)＞Tangshan (1 984.14 kg/hm²). Total hay output of the grasslands in Chengde, Zhangjiakou and Baoding accounted for 84.44% the hay yield of Hebei, while hay yield of the other six administrative regions accounted for only 15.56%. 4) Compared with that of 1979-1984, the average hay yield of 2005-2007 was 36.49% less, with an annual decrease of 1.46%. The average hay output of mountain meadow, temperate steppe, marsh grassland, lowland meadow and temperate meadow-steppe was seriously reduced with a reduction of more than 50%. The relative rate of change of average hay production (R) between 2005-2007 and 1979-1984 of warm temperate shrub-grassland and warm temperate tussock declined range from -5% to -50%, indicating a significant yield reduction grade. The grassland hay area yield reduction accounted for 91.96% of the Hebei grasslands, with 31.92% of the area production seriously reduced with the extent of reduction >50%, while 8.04% of the grassland remains unchanged compared to that in 1979-1984.