Ashin was born into a family of four, consisting of his parents, himself, and a younger brother. His family owned a record store, which inspired his passion for music. Ashin's childhood ambition was to become a singer, but his vocal range was too narrow. He claims his bandmates selected him to be Mayday's singer as he was the worst instrumentalist out of all of them. Ashin can play both guitar and drums.
Ashin attended a public elementary and middle school in Beitou District. After graduating from middle school, he was accepted into one of the top high schools in Taiwan, The Affiliated Senior High School of National Taiwan Normal University, where he majored in visual arts. Ashin joined the high school's guitar club and was made president the following year. It was in the guitar club that he met the other members of Mayday: Monster, Masa, and Stone. At the age of 19, he started composing. The first song, "Hao Ju Hao San", was released on Richie Jen's 2001 album "Fei Niao." After graduating from high school, Ashin attended Shih Chien University, where he majored in interior design. Mayday began to start seeing success while Ashin was still in college.
In 1995, together with Monster and Qian You-Da (Mayday's original drummer), Ashin formed "SoBand". Shortly after the band formed, Masa came on board as the band's bassist. Ashin was both the lead vocalist and the guitarist and during their formative years the band played at a number of major bars across the country. In 1997, shortly after Stone joined the band, the members decided to change their name to Mayday. Ming joined the band later as the group's drummer.
Mayday first started off as an underground rock band. They sent demo tapes to the then major record labels and were spotted by renowned producer Jonathan Lee (李宗盛) of Rock Records. Mayday released their first official album in 1999 and began to gain a steady stream of fans. They released five albums under Rock Records, before teaming up with director of Rock Records, Chen Yong-Zhi(陳勇志) to found B'in Music Co. Ltd (相信音樂) in 2006.
Ashin used to be Mayday's sole composer; it was only during production of the band's fifth album that other band members began to contribute their own work. Ashin's compositional talents have been highly sought after by other artists and as a result he has composed a significant number of songs for other artists, such as: Fish Leong (梁静茹), Rene Liu (劉若英), S.H.E.
Ashin published his first book, Happy.Birth.Day, in 2006. It features the lyrics of 60 of his songs, as well as a selection of his photography.
In 2008, he published "Escape to Japan", a guidebook to unconventional travelling in Japan.
In 2012, he collaborated with Ninagawa Mika and published a photography book called "Stairway to Heaven".
In 2006, Ashin and his high school classmate No2good (不二良) were invited by BenQ to create the MusiQ dog tag MP3 player. The development process took 8 months with the help of top designers from China and Taiwan. In 2007, Ashin and No2good designed a symbolic lion figure toy named Jr.Q for BenQ. In the same year, Ashin and No2good unveiled their new clothing line, StayReal, in Taiwan.
Ashin's has stated that he's highly influenced by: The Beatles, Lo Ta-yu (羅大佑), Wu Bai(伍佰) and Mr. Children to name a few. He writes songs in Mandarin and Taiwanese Hokkien as his parents and grandparents are fluent in both languages.2006: MusiQ MP32007: Guerlain2008: 2008 Taipei International Book Exhibition2009: 7-Eleven – Coffee1）Happy.BIRTH.Day: Birth of Rock Poems2）Escape to Japan: 浪漫的逃亡3) Stairway to Heaven Ninagawa Mika x Ashin