The gleyed paddy soil is a main kind of lowyield paddy soil,which affects the improvement of rice yield greatly.A field experiment was carried out to discover the improvement effect of the combined application of organic and inorganic fertilizers on the soil total amounts of reducing substances and rice growth traits under ditch drainage condition.Results showed that,after two consecutive quarter of organic fertilizer application,yield in gley paddy soil increased significantly,and it was the highest of early rice with milk vetchwith pig manure of late rice treatment. Adding organic fertilizer decreased soil pH value of arable layer of gley paddy soil.Organic matter of early rice with milk vetch,late rice with pig manure increased obviously than that of NPK treatment by 15.22%.The gley paddy soil total nitrogen content of early rice with milk vetch,late rice with pig manure was 4.19%,which was higher than that of single fertilizer.The gley paddy soil phosphorus of early rice with milk vetch,late rice single fertilizer was the highest,which was increased by 4.92% than that of NPK.Compared with the NPK treatment,soil available potassium content of early rice with milk vetch,late rice fertilization of chemical fertilizer was 13.2% higher than that of both season applying chemical fertilizer.Therefore,gley paddy soil with organic fertilizer improved the soil nutrient availability,appropriately increased rice yield,could be used as a method to improve gley paddy soil fertility.