Abstract: The founding of the Kingdom Wu had historical significance to the founding of the Six Dynasties. The imperial power construction of the Kingdom Wu, interiorly restrained by the development of the region of Jiangdong (East of Yangtze River) and exteriorly influenced by the relationship between the Kingdoms of Wei and Shu, experienced two stages:SUN Quan's crowning himself as King Wu and then as the Emperor. At the end of the Han Dynasty, SUN Quan sought to construct imperial power through the royal order of the State of Wei reigned by CAO Family when he was not supported to claim King in the region of Jiangdong. After the fourth year of Huangwu (225 C. E.), the relationship between SUN Quan and major clans in Jiangdong became smooth, together with loosened exterior stress, and hence SUN was able to claim Emperor and establish the capital in Jianye (today's Nanjing) in the first year of Huanglong. After his claim of Emperor, SUN expanded his imperial power by suppressing the bureaucracy. His assignment of Prince SUN Deng to guard Wuchang City was actually an action of suppressing[JP2]bureaucratic officials such as LU Xun who had real power. However, the division of imperial power led to the result that Prince became another imperial authority besides the Emperor, which shook the foundation for the imperial power to continue.

Key words: Kingdom of Wu, Six Dynasties, Jiangdong, political system, geopolitical landscape