In 1905, Lian Yu was posted as the assistant amban to Tibet, to work with amban You Tai. The following year, You Tai was arrested on charges of corruption, and Lian became the chief amban. He remained in the post till the Xinhai revolution when all Chinese officials were expelled from Tibet.[4]
Republic of China
In January 1913 he was appointed Chief of the Zhejiang High Court, but he resigned in November.[5] The following March he was appointed Chief of the Zhili High Court which post he held until September 1920.[6] He was transferred to acting Chief of the Henan High court soon, but resigned next month.[7] Later he was an established lawyer in Tianjin.[3]
In April 1938 Lian Yu was appointed Vice-Minister for Foreign Affairs in the Reformed Government of the Republic of China, but resigned in June. Next February, the Minister for Foreign Affairs Chen Lu (陳籙) was assassinated by secret agents of the Nationalist Government, so Lian served 4 months as acting Minister for Foreign Affairs. In same August he was transferred to the position of acting Minister for Business (Xia Qifeng succeeded him as acting Minister for Foreign Affairs).[8]
In March 1940 the Reorganized National Government of China was established, Lian Yu was appointed a legislator (Member of the Legislative Yuan).[3] In the end of the same year he was appointed the first Ambassador to Manchukuo. In February 1943 he was recalled (Chen Jicheng陳濟成 succeeded him in this position) and became Ambassador standing at the Ministry. In May 1945 he was appointed as the last Ambassador to Japan.[9]
After the Wang Jingwei regime collapsed, the whereabouts of Lian Yu remained unknown.
Guo Qingyou (郭卿友), ed. (1990). List of Military and Political Officer on the Era of Republic of China (中華民国時期軍政職官誌). Gansu People's Press (Gansu Renmin Chubanshe; 甘粛人民出版社). ISBN7-226-00582-4.