Recendtly an organic agricultured in Korea is getting a public attention not only for minimizing NO3- contamination of groundwater but also for producing of quility of agricultural products. But still there is not Basic Standards for Organic Agriculture in Korea and Japan since they just believe organic agriculture is one kind of the environmental friendly sustainable agriculture as written in western literature. In the paper it was discussed the core skills and doctrine of IFOAM Basic Standards compare to Korean Organic Farming Method in oder to point out thed disadvantages of overuse of organic fertilizer, 50-150MT/㏊ in each cultivation, intensive monocropping in glass-house without any rotation & legume, and without any green manure. Most korean or-ganic farmer believe that the more they apply organic fertilizer, the better they pro-duce high quility of crops and they practise organic agriculture completely. It was also suggested the overuse of organic fertilizer cause the accumulation of NO3- in rhizosphere and subsequently it might lead to drinkwater pollution by nitrate leaching. In conclusion it is suggested that for successful establishment of organic agriculture, The Association of Korean Organic Agriculture, The Society of Korean Organic Agri-culture and the certification body should be developed the Basic Standards which is acceptable by IFOAM Basic Standards.