In 1913, Wu Tzu-yü went to Peking (now Beijing) and Shanghai, China, to engage in mining businesses[1] and interacted with political figures while there.
He joined the Kuomintang (KMT) and remained in China until 1922 when he returned to Taiwan due to his father Wu Luan-chi's severe illness.
His experiences in China influenced his support for the Taiwan Parliament Establishment Petition Movement and other Taiwanese nationalist activities.
Even after returning to Taiwan, he continued to engage in political, economic, and cultural anti-Japanese activities in secret.
Wu Tzu-yü had a profound interest in sinology and was known for composing classical Chinese language and culture.