马列主义的对外开放理论 ,是毛泽东对外开放思想的理论依据 ;毛泽东对外开放思想的主要内容表现在两个方面 :“一切民族 ,一切国家的长处都要学”和“欢迎外国资本的投资” ;毛泽东对外开放思想由于多方面的原因 ,未能付诸实施 ,但其理论的光辉仍然照耀着后继者 The theory of opening up Marxism-Leninism is the theoretical basis of Mao Zedong’s opening to the outside world. The main content of Mao Zedong’s opening to the outside world is manifested in two aspects: “the strengths of all the nations and all nations must learn” and “welcome the investment of foreign capital” Because of many reasons, Mao Zedong’s thought of opening to the outside world failed to be put into practice, but the brilliant light of his theory still shone on successors