Abstract: The generation and development of low-altitude economy has an intrinsic logical connection with Marx’s space thought, and contains a profound theoretical foundation of Marx’s space thought. According to Marx, space is a necessary element for all production and all human activities, and is inevitably related to economic development and capital drive. Based on Marx’s space thought, low-altitude economy, as a new expansion of human beings in the spatial dimension, is a typical representative of the new quality productive forces, and has a positive impact on the construction of a better life. Certainly, while low-altitude economy has demonstrated its vitality, it also entails certain ethical risks. Therefore, with the capital as the driving force, it is necessary to take a long-term perspective, clearly understand and grasp the inherent laws and practical contradictions in the development of low-altitude economy, and take into account the development efficiency and ethical justice of low-altitude economy. Specifically, low-altitude economy can be explored from the perspectives of coordinated development of space production and space equity, balanced consideration of economic gains and space justice, harmony between the nature of the subjects and the rights and interests of the space structure, and important position of sustainable development and space protection, so as to better promote the sustainable and healthy development of low-altitude economy.