Career
His pen name is "Lu Jiang" (履彊). As a politician, he strongly supports the cause of Taiwan independence. In 2001 he began to serve as the secretary of Taiwan Solidarity Union (TSA) and in 2005 he was elevated to the party chairperson.
In 2006 after a poor election performance of the party he resigned the chairmanship.
Yasukuni Shrine visit controversy
In April 2005, Shu visited the controversial Yasukuni Shrine in Japan, incurring much criticism in Taiwan, as the shrine has posts for World World War II war criminals. However, Shu said that his visit was not an endorsement of Japanese militarism, instead he was only paying tributes to Taiwanese soldiers who had died while serving for the Japanese during occupation.
2014 visit to Mainland China
In early March 2014, Shu was expelled from the TSU and his party membership was revoked for accompanying Chinese Nationalist Party Honorary Chairman Lien Chan and other delegates on a visit to Mainland China the month before. His actions were viewed as seriously violating the core values of the TSU.