Abstract: Scientific socialism has the theoretical quality of keeping pace with the times, and will develop with the change of times and practice. In the new era, the contradictions and conflicts between man and nature, ecological crisis and environmental problems have become the major problems that must be faced in the social development. When dealing with the ecological and environmental problems, we urgently need the guidance of scientific theories. Xi Jinping's Thought on Ecological Civilization, which has opened up an environmental perspective and ecological theme for scientific socialism, has come from the new pattern of the harmonious development of man and nature, and reflected from the socialism beyond the "Soviet model", and promoted the ecological innovation of the theory of scientific socialism. Xi Jinping's Thought on Ecological Civilization is a profound connotation, logically rigorous, comprehensive system of theoretical system, with its ecological thought and principles being embodied in "ten insistences". The theoretical elements of holistic implication contained in the "ten insistences", such as "fundamental guarantee", "core concept", "objective requirement", "strategic path", "system concept", "system guarantee", "social force", and "global initiative", reveal the theoretical value of Xi Jinping's Thought on Ecological Civilization. Xi Jinping's Thought on Ecological Civilization has improved and developed the theory of scientific socialism, providing theoretical guidance and practical guidance for the construction of socialist ecological civilization.