Nangang District Yiyuan Street, is Mao Zedong, Zhou Enlai, Liu Shaoqi, Zhu De and other proletarian revolutionaries of the older generation of inspectors in Heilongjiang Province to live and work at the place where they are now four Piyou Gallery, the large number of pictures on display , In-kind and extremely valuable in the photo.

1950, February 27. Chairman Mao Zedong and Premier Zhou Enlai's return from Moscow. Heilongjiang Province carried out an inspection, cordially met with the provincial and municipal responsible comrades. And gave important instructions. Comrade Mao Zedong as the provincial party committee that the "not-free bureaucracy," and "learning" and "struggle" for the Harbin municipal party committee that the "product development", the Communist Youth League for the second time in Harbin on behalf of the General Assembly that the "study of Marxism-Leninism" A total of five inscription. At that time, the provincial party committee leaders hope that more several Comrade Mao Zedong, he said the elderly witty These do on the good. Zhou Enlai, Liu Shaoqi, Zhu De and other party and state leaders on many occasions to visit Heilongjiang Province, Daqing's oil wells to Xiao Hinggan Mountains forest, from the factory to the rural areas, many places have left their footprints. Of the party and the state of the Heilongjiang Provincial People's care.