Wei’s film career began when he got a job in a small production house. Then he became an assistant in Edward Yang's film studio in 1995. When Yang was filming Mahjong (1996), he was promoted to assistant director from a grip assistant. From 1995 to 1998, he had shot shorts including "Face in the Evening" (1995), "Three Dialogues" (1996) and "Before Dawn" (1997), and all three films had won Golden Harvest Award for Film and Digital Video.
Moreover, his 1999 16 mm film "About July" won great reviews from film critics in Taiwan, and was honored with a Special Mention from the Alcan Dragons And Tigers Award For Young Cinema at the Vancouver International Film Festival. He was also the associate producer of Double Vision (2002), produced by Columbia Pictures Film Production Asia.
In 2004, he raised 2.5 million NT dollars by himself and shot the teaser of "Seediq Bale" in order to further raise 200 million dollars for the finance of shooting the complete film.[1]
In 2011, Wei's new feature film Seediq Bale has been selected as one of the films in competition at the 68th Venice International Film Festival.