This study compared Jeongjaemudo Holgi (musical scripts) with video materials of “Mugo” (group dance from the Goryeo period) and “JangsaengboyeonJimu” (court music from the Joseon period) performed in the 1980s at ‘Traditional Dance Presentation’ of National Gugak Center following Simso Kim Cheon-heung’s restoration of them. By doing so, the study sought to learn how he had restored the court dances. As a result, the study found following characteristics of “Mugo” and “JangsaengboyeonJimu”. First, the greetings were added both in the beginning and the end of the performance. Second, the songs of the dancers were simplified. Third, there was no big change in dance formation. Fourth, there were omissions or additions in the procedure of the dance. When he restored court dance in the 1980s, the restoration was built on what he learned from Music Academy of the Joseon Dynasty and a number of materials including Akji (music book) of Goryeosa, that is lustrated Text on Traditional Music and Holgi. His restoration of the court dances in the 1980s was affected by periodical circumstances and creative experiences during the 1950s. This study concluded that the court dances he restored was the extension of tradition and literature interpretation. This study identified his spirit from his restoration which was completed based on experience and aesthetic attitude. Rather than sticking to the original literature, he showed the essence of the court dances as a new form of art by putting it on stage. He desired to turn the court dance into a contemporary proscenium stage art and to elevate it to the modern art form. As such, his restoration of the court dances in the 1980s was a process which he embraced the change of the period. Thus, Kim Cheon-heung can be considered as an artist who demonstrated artistic capability encompassing tradition.