Organic ginseng farming has rapidly increased in response to consumer demand for a safe product which improves health. Differences in soil nutrient concentration and ginsenoside content between organic and conventional ginseng farming have, however, not yet been properly studied. Therefore the aim of the present study was to compare soil nutrient concentration and ginsenoside content between these two farming systems. NO3-N, P2O5, and K were significantly different between organic and conventional ginseng farming. The total content of ginsenoside and individual ginsenoside components were higher in organically grown ginseng than in ginseng from conventional farming, although there is no significant difference. Particularly, protopanaxadiol saponins were higher than protopanaxatriol saponins in ginseng from organic farming compared to ginseng produced by conventional farming. NO3-N content in soils showed a negative correlation with the content of ginseno-sides Rb2 and Rd. In addition, P2O5 showed a negative correlation with ginseno-sides Rb1, Rc, and PD/PT ratio. Organic matter showed a positive crrelation with ginsenosides Re. To increase the ginsenoside content of ginseng, we recommend increasing organic matter and decreasing NO3-N and P2O5 contents in the soil.