寶安縣
In response to the Wuchang Uprising in 1911, Xin'an residents rebelled against the local Qing administration and successfully overthrew them. In the same year the Chinese section of the Kowloon–Canton Railway (KCR) was opened to the public, and the last stop of the Chinese side, Shenzhen Railway Station, had opened in Shenzhen, helping the town's economy and opened Shenzhen up to the world. In 1913, the Republic of China administration renamed Xin'an County back to Bao'an County to prevent confusion from another county of the same name in Henan Province. During the Canton–Hong Kong strike, the All-China Federation of Trade Unions set up a reception station for strike workers in Hong Kong in Shenzhen. Strike workers were also given pickets and armored vehicles by the strike committee to create a blockade around Hong Kong. In 1931, Chen Jitang and his family established several casinos in Shenzhen, the largest of which being Shumchun Casino. While only in operation until 1936, they significantly increased KCR's passenger traffic to and from Shenzhen.