Dwikkoji (Ornamental Hairpin) consist of a pointed end and a decorative top, with the hair ornament inserted into a chignon. Dwikkoji can be divided into General Dwikkoji applied for decorative purposes, Bichigae Dwikkoji used to part the hair with its pointed end and to clean the teeth of a comb with the other end, and an ear-pick shaped Dwikkoji was both practical and decorative purposes. Dwikkoji were classified by independence style and mixed mode, stake, etc. The independence style was made with Flower pattern (lotus bud, chrysanthemum, plum blossoms, elixir plant, stem) and Animal [or insect] (phoenix, peacock, butterfly, cicada, bird wing, bat) shaped Dwikkoji and geometric patterns. The mixed mode was classified into chrysanthemum and plum blossoms, chrysanthemum and plum blossoms and mythical peach, butterfly with flowers, bird with flowers, bird with flowers and bee, bird with flowers and bee and butterfly Dwikkoji. Among the remains of General Dwikkoji, the lotus bud, chrysanthemum, plum blossoms and butterfly with flowers appear to have been favored. The flower pattern of the independence style appears to have favored set patterned lotus bud, chrysanthemum, and plum blossoms. It is used in the mixed mode was butterfly, birds, bees flying into a flower was symbolized loving couple and descendants flourish was thought to be favored by a combination of the dwikkotyi. Bichigae Dwikkoji was divided into Yeouidu, sawtooth Yeouidu, mushroom, circle openwork, and circle Bichigae. The ear-pick shaped Dwikkoji was divided into the independence style and acupuncture attachment style. It consisted that Joseon Dynasty chignon ornaments have originally decorative thing and usage but is thought that was used habitually by a main tool that was decorates head that become gradually change decorative.