Objectives: Effectiveness Of Soyamilk Administration on Degree of MalnutritionMethod: Quasi-Experimental Research design with a quantitative research approach was undertaken on 50 children. Results: The findings revealed that the soy milk was effective in decreasing mild and moderate malnutrition as the mean was 11.33 with standard deviation of 0.63 in the experimental group and in the control group the mean was 10.52 with standard deviation of 0.48 in the post test after administration of soya milk which was found statistically highly significant at p<0.001 level. Conclusion: The study concluded that soya supplementation, will bring out better all round development of children and the soy milk was very efficacious in preventing malnutrition.