1946年4月28日,东北民主联军解放了哈尔滨。当时的哈尔滨是全国最先解放的大城市,中共东北局所在地,党的很多重要机构都设在这里,政治空气非常浓厚。为提高广大干部和党员的思想理论水平,指导当时的土改运动和解放战争,特别是大力宣传刚刚在党的“七大”确立的毛泽东思想,东北局领导决定出版一部《毛泽东选集》。翌年秋 April 28, 1946, the Northeast Democratic Coalition liberated Harbin. At that time, Harbin was the first big city liberated in China. The location of the Northeast Bureau of the CPC is where many important party organizations are located. The political atmosphere is very strong. In order to improve the ideological and theoretical level of cadres and party members, guide the land reform movement and the war of liberation of the time, and especially vigorously publicize Mao Zedong Thought which was just established at the “7th Party Congress,” the Northeast Bureau leadership decided to publish a “Selected Works of Mao Tsetung” . The following autumn