本文通过对聊城市 1 999年至 2 0 0 1年棉花衣分的变化同与其相对应的气候因子进行灰色关联分析 ,可知 :8月中旬 ,9月下旬的光照时数 ;8月上中旬 ,9月中旬的降水量能够较大的影响棉花衣分 ,8月上旬的光照时数 ,9月上旬的降水量对棉花衣分也有一定的影响 ,生产上可通过尽可能地改善或充分利用这些气候因子以提高棉花的衣分。 In this paper, gray correlation analysis of the change of cotton garments and the corresponding climatic factors in Liaocheng from 1999 to 2001 shows that the number of hours of illumination in the middle of August and the end of September is the same as that in the middle of August, Precipitation in mid-September can have a greater impact on cotton garments, light hours in early August, and precipitation in early September, also have some impact on cotton garments, and production can be improved or maximized by making use of these Climatic factors to improve cotton clothing points.