In response to the demand for future reusable spacecraft， this article first briefly analyzes the application progress and characteristics of heat-resistance composite structure design technology for typical reusable spacecraft abroad， including the American X series and the Dream Chaser spacecraft. Then， from the aspects of structural material selection， design and analysis， the current status and development direction of the main engineering technologies related to the large-scale application of advanced heat-resistant resin-based composite in the overall structure of reusable spacecraft is discussed， theoretical analysis for the future development of reusable spacecraft structures from an engineering application perspective is provided. Finally， the key research content of the heat-resistant composite structure design technology for future reusable spacecraft is introduced.