Fernbraken is a popular and well-known wild grass, but the physiochemical properties of Korean Traditional pickling (Jangachi) during aging have been little reported. Therefore, this study was carried out to investigate the physiochemical properties of Fernbraken Jangachi treated with a soybean sauce mixture for 6 weeks (1st pretreatment) as well as fermented with soybean paste, red hot pepper paste and soybean sauce for 7 weeks. Total polyphenol contents, acidity, salinity, sweetness (Brix), and ${alpha}$-tocopherol of Fernbraken Jangachi all increased with aging period. On the other hand, pH and total acidity of Fernbraken Jangachi did not change much. Among the three kinds of Jangachies, Jangachi fermented with soybean sauce showed 2 fold higher salinity and total acidity levels compared to the others. Therefore, the physiochemical properties of Fernbraken Jangachi were dependent on the pickling properties, such as soybean paste, hot pepper paste or soybean sauce, and these properties maintained a certain level after 5~6 weeks of aging. Further, proper aging period for Fernbraken Jangachi was suggested as 10 weeks.