Abstract: Stability analysis was carried in twenty genotypes of fodder oats under four random environmental conditions of Kashmir valley. Observations were recorded on 10 maturity, morphological, quality, yield and yield related traits. Significant variation among genotypes was observed for all the traits indicating presence of high level of variability Significant GXE interaction was observed for all the traits. Partitioning of GXE interaction revealed that both the components were highly significant in all the characters with predominance of the Linear component, thereby, suggesting that the performance of genotypes across environments could be predicted with greater precission. Eleven genotypes showed average stability for green fodder yield of which nine genotypes (EC-3517, EC-35134, EC-13178, EC-1085898, EC-96848, EC-9865, EC-131532, Sabzaar and Kent) were well adopted and two genotypes (EC-54837 and EC-99170) were poorly adopted to all environments. Genotypes EC-35117, EC-35134, EC-13178, EC-1085898, EC-97248, EC-131532, Sabzaar and Kent were found to be stable and well adopted to all environments for most of the yield and yield related traits. These genotypes would be useful for commercial exploitation or can be exploited as elite gene pool in future breeding programme.