This is an architecture with classical Chinese garden style. Originally built in 1870, the hall was used by the Liangjiang Governor-generals and their senior assistants for writing and appreciating their poem. Attached to it, a stage was built during the period of Taiping Heavenly Kingdom. Later, Dr. Sun Yat-sen often held meetings and received his guests here. Then, it became the office of the Military Affairs Commission of the Nationalist Government and the Bureau for Military Affairs of the Presidential Palace successively.