On 15 November 1947, she secretly joined the CCP while in
Tianjin. During the spring of 1948, under the leadership of the CCP and
Nie Rongzhen, work for the peaceful liberation of
Beijing began, organised by the central bureau of the CCP under Chairman . In the autumn of 1948, during the
Liaoshen campaign, Liu Ren sent cadres to Tianjin to have a meeting in secret with Fu Dong to convey the instructions of the CCP, asking her to do the work of her father Fu Zuoyi, and she went to Beijing. In November 1948, Liu Ren, in accordance with Nie Rongzhen's instructions, asked
Yu Diqing, secretary of the student work committee of the CCP's Beijing underground party, to move Fu Dong to Fu Zuoyi's side as soon as possible so as to keep abreast of Fu's situation. Duan Yongxuan instructed Yu Diqing to negotiate with Fu Zuoyi on behalf of the CCP. Yu Diqing searched for Fu Dong, who was staying at her father's apartment in
Zhongnanhai. During the
Pingjin campaign, Fu Zuoyi was surrounded by many underground CCP members, including his secretary, major general , , and others. They worked with Fu Zuoyi through
Liu Houtong, , and others that had ties with him to persuade him to leave Chiang Kai-shek's camp and have talks with the CCP. Due to this, the CCP did not need Fu Dong to provide specific military information, but hoping that she could persuade her father to talk to the CCP. Fu Dong facilitated the secret talks between the Communists and her father in an effort to obtain his surrender. At the time, Fu Dong reported to , an underground member of the CCP, every two days on her father's mood changes, and sent them to the front-line headquarters of the
People's Liberation Army through radio. Her job was to tell the CCP of her father's ideas and demands, and then to tell her father about the CCP's ideas and decisions, playing the role of the middleman. Fu Zouyi's concerns at that time were fear and sorry for his subordinates and friends, surrendering to the CCP, and worrying about the future arrangements of his troops, especially cadres. After several negotiations, on 21 January 1949, Xiaojun returned to Beijing, Wang Kejun, Director of the Political Department of Beijing, on behalf of Fu Zuojun, officially wrote the "Peaceful Solution to the Beijing problem", and on 31 January the Chinese People's Liberation Army entered Beijing. Throughout the Pingjin campaign, Fu Dong was always by her father's side. In his memoirs, he expressed his great appreciation for Fu Dong's role in the war. After the Peaceful Liberation of Beijing, Fu Dong went to Tianjin and joined the
Progress Daily newspaper as an editor, using the pen name "Fu dong". after
Progress Daily was suspended, Fu Dong joined the southwest service corps of the Second Field Army of the Chinese People's Liberation army in August 1949, and went on foot with the troops from
Hunan to Kunming,
Yunnan Province, where she later worked. in August 1949, she participated in the founding of the
Yunnan Daily newspaper. In 1951, during the
Korean War,
Chen Geng sent her back to Beijing, and when
Shuai Mengqi left her in the ''
People's Daily newspaper when she saw that she was not healthy. In March 1951, she was transferred to the press department and the literature and art department. In 1952, she married Zhou Yizhi, the Chief Correspondent of the Hong Kong bureau of People's Daily''. ==Later life==