保定陸軍軍官學校
With the outbreak of the Xinhai Revolution in 1911, under the leadership of Huang Shaoxiong, Bai joined a Students Dare to Die corps. After entering the Nanjing Enlistment Corps he transferred from the Corps to the Second Military Preparatory School at Wuchang. He graduated from the school in 1914, then underwent pre-cadet training for six months before attending the third class of Baoding Military Academy in June 1915. He became a 1st Guangxi Division probationary officer upon returning to Guangxi.