Abstract: Based on the documents relevant to Shengyun, this article probes Shengyun's bannership and narrates his Experiences. From the perspectives of ethnical consciousness and national identity, this article explores the important activities of Shengyun after the 1911 Revolution, such as leaving for Kulun, seeking help from Mongolia and Russia, writing to Janpanese government and visiting Japan, working for restoring of the Qing. The author argues that Shengyun originally attempted to take advantage of his ethnical status of Chahar Mongolian to gain support from the tribe leaders from the inner and outer Mongolia. He failed because his ethnical identity was not based on culture and common emotion but on the aim and need to restore the old Qing regime. His activities proved that although Mongolian bannermen had the Mongolian origin, they were not culturally or emotionally different from the Manchu bannermen after living together for more than two hundred years. In order to restore the Qing, Shengyun even resorted to the foreign countries．His practice was not for his personal fame or interests, but for his political aim, even though this was against the historical tendency. For him, the consciouness of ethnical and regional identity is subject to that of political and cultural identity．