本文着重论述了恩格斯作为马克思的亲密战友,为奠定共产主义世界观的科学、哲学基础所做的巨大贡献.文章从世界观、历史观、认识论、方法论等方面引证了马克思和恩格斯的有关论述,就国内外理论界在马克思主义哲学体系、实践唯物主义等问题上的不同看法进行了分析,批评了其中的某些形而上学倾向,特别是对恩格斯哲学思想的误解甚至歪曲,强调要从无产阶级共产主义的立场、革命实践的观点和唯物辩证的方法之有机统一出发,完整地准确地把握马克思主义这一科学理论体系. This article focuses on Engels as a close comrade in arms of Marx and makes a great contribution to laying a scientific and philosophical basis for the communist world outlook.The article cites Marx and Engels’s expositions from the perspectives of the world, history, epistemology and methodology, Foreign theoretical circles analyze different views on the Marxist philosophical system and practical materialism, criticize some of their metaphysical tendencies, especially misunderstandings and even distortions of Engels’s philosophical thought, stressing that from the perspective of proletarian communism Based on the organic unity of the position, the viewpoint of revolutionary practice and the method of materialist dialectics, and fully and accurately grasp the scientific theoretical system of Marxism.