1938 In the spring, the office of the Red Cross Society of China was moved to Hong Kong, and Du personally presided over the work, and set up an office of the General Society to receive materials donated from overseas and raise funds for rescue. From 65438 to 0942, Du founded Chongqing Hospital, which was the most advanced wartime rear hospital at that time and was praised by public opinion. After the victory of the Anti-Japanese War, Du returned to Shanghai, where he urged demobilization and helped restore and strengthen the organization of the Shanghai Red Cross. 1925 may 15, the Japanese cotton yarn factory in Shanghai went on strike because of child abuse, and Japanese military pistols shot unarmed workers. After the incident, the Japanese side suppressed the matter by various means. Ma Chaojun (later minister of agriculture, industry and agriculture of the Kuomintang) negotiated with the Kuomintang in Shanghai and decided to contact gentry, businessmen and scholars from all walks of life for justice and unity. They initially decided to hold a mass meeting in Shanghai on May 30th to protest against the Japanese, but they needed a "person with the greatest mass strength" to join them. The preparatory authorities of the people's congress think Du is the man they are looking for. When Du heard the news, he immediately canceled all social gatherings and said that he would do something serious. He began to dispatch troops and assign tasks to his subordinates: first, send people to the people's meeting on nine acres of land as much as possible. Second, protect the safety of Mr. Ma and other Kuomintang members as much as possible. Third, maintain the order of the venue as much as possible. 4. Agree with all the opinions put forward by the Kuomintang.
1June 4, 926, Shanghai has become a dead city. The long-term strike has caused more than 654.38 million workers in Shanghai to face serious living problems. Du donated a large sum of money and mobilized friends from the industrial and commercial circles to donate enthusiastically. After months of negotiations between the Beijing government and foreign consuls, Shanghai residents' claims for the May 30th massacre were finally partially resolved. 1937 10 Du moved to Hong Kong. In Hong Kong, he continued to use gang relations to carry out anti-Japanese and national salvation work. . Du's unified committee for work behind enemy lines in Shanghai took various measures to force the main figures of Shanghai bourgeoisie to leave Shanghai for Chongqing, and successfully rebelled against Gao Zongwu and Wang Jingwei's traitor group.
1938, the Kuomintang government also established the Central Disaster Relief Committee. After the "August 13th" Anti-Japanese War, Chiang Kai-shek appointed Du as the standing committee member of the Association, responsible for the work of the so-called ninth relief area in Guangdong, Guangxi and Fujian provinces. Du is also responsible for cooperating with Dai Li to arrange personnel to collect information in enemy-occupied areas, as well as exterminating traitors and rebellions. In addition, Gao Zongwu, who caused a sensation at home and abroad, broke away from the Wang puppet group and announced the "Wang puppet plot", which was also a joint rebellion by Du Fu and Dai Li. Before the National Revolutionary Army withdrew from Shanghai, the Shanghai Anti-Enemy Support Association from all walks of life held the inaugural meeting of the National Committee for Economic Severance with Japan to electrify the executive organs of the national organizations for economic severance with Japan. Twenty-seven people, including Du, were elected as executive members of the dear John Committee. 10 19, when Shanghai banking notified banks to stop trading foreign exchange securities with Japan according to the resolution of the breakup Committee, Zhonghui Bank and Bank of China, chaired by Du, followed suit. Du attaches great importance to children's education. Du also founded a Zhengshi Middle School in French Concession Road, and appointed Chen Qun as the principal. In his hometown Pudong, he invested 654.38 million yuan to build the Pudong Du Library with a school. After the fall of Shanghai, Du persisted in the concession for a period of time and served as the head of the anti-enemy committee of all circles in Shanghai. He once spent a huge sum of money to buy many progressive books such as Red Star over China and Complete Works of Lu Xun published by * * * *, and gave them to the major libraries in the concession with the golden word "Gift to Du".