Juedai Shuangjiao, rarely translated in English titles, like Two Peerless Heroes, is a wuxia novel by Gu Long. The novel spans a total of 126 chapters and was written between 1966 and February 1969. The story is about a pair of twin brothers who were separated from each other at birth and raised under different circumstances. The twins first see each other as enemies but gradually become friends and eventually acknowledge each other as brothers.
Jiang Feng, a handsome young man with weak fighting skills, is injured during a misadventure and saved by sisters Yaoyue and Lianxing of Yihua Palace. The sisters, considered the most powerful female martial artists alive, both fall in love with Jiang Feng, but he spurns them because of their arrogance. He instead falls in love with their servant girl, Hua Yuenu.
Juedai Shuangjiao is a Taiwanese television series adapted from Gu Long's novel of the same title. The series was first aired on TTV in Taiwan in 1977.
The series was considered to be a major production by TTV at that time because most of the actors in the television station were involved in the project. Hsia Ling-ling was initially selected by Gu Long for the role of Tie Xinlan, but she ended up playing Xiaoyu'er instead. Gu Long praised Hsia's performance as "a classic of the classics". Su Ying and Murong Jiu, originally two different characters in the novel, were combined as a single role (played by He Szu-min) in the series to add a touch of creativity. News of Gu Long having an affair with Chao Tzu-ching surfaced when the series was being aired in 1977. Chao was heavily criticised in the media for being a "third party" as Gu Long was already married. Gu Long had previously constantly asked the screenwriters to give Chao a bigger role on screen. After the scandal was exposed, Chao was fired from the project and replaced by Chu Hui-chen. The screenwriters also changed the script to make Chao's character, Tie Pinggu, become disfigured.