Copper and its alloys show great application potential in the field of thermal management due to their high thermal conductivity, and 3D printing technology is the key to expanding their application scenarios. Debinding technology is one of the main factors limiting the development of its printing technology. In this paper, quantitative indicators for the thermal debinding quality of binder jetting (BJ) printed green bodies are established. The binder distribution inside the BJ printed green bodies is optimized, and the optimization results of different optimization methods are compared and verified through experiments. The study finds that the optimal parameters for the optimized area of the binder distribution inside the green part are (S₁/S₀,R₁/R₀,R₂/R₀)=(0.6,0.4,0.8). The binder distribution of the shape - optimized result also shows a flared shape that is narrower at the top and wider at the bottom. After printing verification, it is found that there is no significant difference in the printing effect. Analysis of the mechanical properties of different binder distribution strategies with the same overall binder content reveals that the shape optimization improves the performance by 10% compared to the non - optimized case. This study provides a reference for subsequent research on the shape optimization of the binder distribution in green bodies and is beneficial to the development of indirect 3D printing heterogeneous forming technology for high - performance printing materials.