Starting from May 20, 1937, Bohr, his wife and son H. Bohr came to China for an 18-day lecture and tour, and were warmly welcomed by the Chinese academic community. Bohr gave seven lectures in Shanghai, Hangzhou, Nanjing and Peking, all of which were about issues in atomic physics and nuclear physics. Once, Bohr visited the Physics Laboratory of Peking University and learned that Chinese scholars were also studying the Raman effect. They had discovered two very close spectral lines 991 and 984 from the complex spectrum of benzene scattering, and obtained a clear photos. He greatly appreciated China's ability to take photos of the 984 spectral line, which required hundreds of hours of exposure to develop. Bohr always cherished the friendship between China and Denmark. Before his death, he asked his son, the famous physicist A. Bohr, to visit China. In order to fulfill his father's last wish, A. Bohr visited China twice and gave lectures. Bohr's visit to China has been recorded in history as a major event in the history of modern Chinese science.