At the Second National Congress of the Kuomintang in January 1926, she resolutely defended Sun Yat-sen's three major policies, launched a resolute struggle against the right wing of the Kuomintang, and was elected as a member of the Central Executive Committee.
In early 1927, she founded a women's political training class in Hankou to train women cadres. She also organized the Red Cross with He Xiangning, launched a campaign to visit wounded soldiers and planned wartime relief work. After the "April 12" coup, Soong Ching Ling, leftists from the Kuomintang and Mao Zedong, a member of the Communist Party of China, jointly published the "Demonstration for Chiang Kai-shek's Telegram". On the eve of the "merger of Ningxia and Han", she issued a "Statement to Protest against Violations of Sun Yat-sen's Revolutionary Principles and Policies" in Hankou, announcing her break with those who betrayed Sun Yat-sen's revolutionary cause.
On August 1 of the same year, she, Deng Yanda, Mao Zedong and other 22 people issued a declaration in the name of members of the Kuomintang Central Committee, solemnly exposing the treachery of Chiang Kai-shek and Wang Jingwei. At the end of August of the same year, Soong Ching Ling visited the Soviet Union in order to seek the path of the Chinese revolution and fulfill Sun Yat-sen's last wish to visit the Soviet Union during his lifetime. While in the Soviet Union, Germany, France and other countries, she participated in a series of international anti-imperialist activities. She was elected as the honorary president of the two International Anti-Imperialist League congresses held in Belgium in December 1927 and in Germany in August 1929. , and later became one of the main leaders of the World Committee against Imperialist War.
After the Anti-Japanese War broke out in 1937, she fully supported the anti-Japanese patriotic actions of various parties, groups, and officers and soldiers under the banner of the Anti-Japanese National United Front.
On the March 8th Day in 1938, she published the paper "A Complaint to the Women of the World" in Hong Kong, accusing the Japanese fascists of treating women as slaves and calling on the women of the world to assist China. Driven by the efforts of Song Qingling, Deng Yingchao and others, the National Women's Steering Committee developed very rapidly, promoted friendly cooperation among women from all walks of life and parties in our country, and played its due role in the Wuhan War of Resistance.
In the same year, Soong Ching Ling initiated and organized the Alliance to Defend China to "encourage all peace-loving and democracy-loving people around the world to further strive to supply China with medicine and relief supplies." For this goal, she led the "Baomeng" to vigorously carry out propaganda work, publicize the anti-Japanese war to the world, introduce the heroic resistance deeds of the Eighth Route Army and the New Fourth Army under the leadership of the Communist Party of China; unremittingly support the anti-Japanese war led by the Communist Party of China; Anti-Japanese struggle.
Her lofty international prestige has won the admiration of people from all over the world. Foreigners and overseas Chinese who sympathized with China's Anti-Japanese War donated money and materials one after another. She once scraped her fingers when people wanted her autograph on donation receipts. She also tried her best to break through the enemy's blockades and continuously sent a large amount of money, medicines, medical equipment, communication equipment, canned food and other materials collected to the liberated areas.
She united and organized international friends and international medical teams to inspect and work in the anti-Japanese base areas led by the Communist Party of China. Reporters and doctors such as Snow, Smedley, Bethune, Kotnis, and Ma Haide all entered the liberated areas through her arrangements. Among them, Bethune, Kotnis, and Harrison sacrificed their precious lives for the Chinese revolution. After visiting northern Shaanxi, Snow wrote the famous "A Long Journey to the West".
In 1941, international friends such as Snow and Rewi Alley organized industrial cooperatives in China to support the Anti-Japanese War movement. Song Qingling also received strong support. She happily served as the honorary chairman of the International Committee of Gonghehe. Under her call and influence, overseas Chinese also organized groups abroad to save the country and the people. They had money and strength to support the motherland's anti-Japanese war.
In December 1945, Soong Ching Ling reorganized the China Defense League into the China Welfare Foundation in Shanghai, dedicated to maternal and child health, culture and education, and social relief. During the War of Liberation, she provided huge material and moral support to the liberated areas through various channels.
In January 1948, Soong Ching Ling was appointed as the honorary chairman of the Revolutionary Committee of the Chinese Kuomintang. In 1949, he participated in the preparatory activities for the Chinese People's Political Consultative Conference. After the founding of the People's Republic of China, she successively served as Vice Chairman of the Central People's Government, Vice Chairman of the State, Vice Chairman of the Standing Committee of the National People's Congress, Honorary Chairman of the All-China Women's Federation, and Chairman of the Chinese People's National Committee for the Protection of Children. . In international affairs, Song Qingling was elected as a member of the Executive Board of the World Committee for the Defense of Peace in November 1950, and in October 1952, he was elected as the chairman of the Asia and Pacific Regional Peace Liaison Committee.
On May 15, 1981, Soong Ching Ling was admitted as a member of the Communist Party of China. On the 16th, she was awarded the lofty title of Honorary Chairman of the People's Republic of China. He died of illness in Beijing on the 29th of the same month. His works include "Struggle for New China", "Selected Works of Soong Ching Ling" and "Forever with the Party".
In her long-term international political activities, she has made unremitting efforts to oppose aggressive wars, defend world peace, promote progressive culture, promote social progress and human happiness, and enhance understanding and friendship among people of all countries. Made outstanding contributions. As a result, she is widely admired and hailed as one of the greatest women of the 20th century.
On May 8, 1981, the University of Victoria in Canada awarded Soong Ching Ling an honorary doctorate in law.