The year 1999 went by with almost no activity, then after his mentor in Peking Opera, Chou Cheng-jung, passed away in 2000, Wu accepted an invitation to teach at the Theatre du Soleil in France.
之後，經過了幾乎完全空白的 1999 年、與梨園恩師周正榮辭世的 2000 年，他受邀到法國陽光劇團講課。