After the founding of People's Republic of China (PRC), he lived in Hong Kong for eight years, studied calligraphy behind closed doors and sought inspiration from pen and ink. He was almost obsessed and made great progress. From 65438 to 0957, he lived in Japan and founded "Jing 'an Academy" in the Chinese area of Tokyo, carefully recruiting disciples and teaching calligraphy. His youth background (he studied under famous artists Ma Yifu and Li Genyuan), his unique life experience and his persistent pursuit of calligraphy finally made him "famous in Japan for his profound calligraphy art and humble and free Confucian style". Emperor Akihito asked him for advice for the Crown Prince, and Japanese Chinese and overseas Chinese were also proud of their achievements. In 1960s, his children moved to America, and then his wife died and lived alone. 197/kloc-0 When Japanese Prime Minister tanaka kakuei visited China in, he praised him in front of Mao Zedong and Zhou Enlai. 1975 At the invitation of Premier Zhou, he returned to China for the first time after nearly 30 years. The brush in his hand has quietly promoted the friendly rolling of Sino-Japanese relations. When he arrived in Beijing, Premier Zhou was seriously ill in hospital. "I specially entrusted Vice Premier Deng Xiaoping to receive him. "Because Zhu De and Ma Jin's father are classmates of Wujiang Hall, Chairman Zhu De will also meet him. Since then, he has been invited to return to China five times to participate in celebrations and visits, and has done some work for Sino-Japanese friendship. 1986 In order to learn China's calligraphy better, at the age of 84, he led China, a student of Jing 'an College, to visit Beijing and Xi 'an. In the Great Hall of the People, he was cordially received by the relevant leaders of the Central Committee. The Central Committee of the Chinese Revolutionary Committee invited dozens of famous domestic painters such as Qi Gong, Xiao Lao and Zhou Huaimin to hold a grand pen meeting to welcome the visit of Jing 'an Academy. In an era when peace and development have become the theme of the times, Ma Jin III, an anti-Japanese general, used his writing brush and his wonderful calligraphy as if to build a bridge, "arousing the friendly feelings of many Japanese who reflected and repented of the war of aggression against China towards China". After China's reform and opening up, a large number of young people studied in Japan. Many of them became friends with him, and some of them got his help.
1998 died of illness at home on February 3, and was found two days later at the age of 96.