分析了加速器驱动次临界堆堆芯的裂变核素增殖和平衡条件、主要长寿命放射性废物的积累、裂变产物毒性的影响及次临界堆的运行周期、输出功率和能量增益等主要性质，并对次临界热堆和次临界快堆的物理性质进行了比较。在简单的球形几何条件下，分析了铀－铅和钍－重水组成的快－热耦合的次临界系统的物理性质。 The main factors that affect the proliferation and equilibrium of fission nuclides stimulated by accelerator-driven sub-critical reactor core, the accumulation of major long-lived radioactive waste, the toxicity of fission products and the operation cycle, output power and energy gain of subcritical reactors are analyzed. The physical properties of sub-critical and sub-critical fast reactors are compared. Under the simple spherical geometry, the physical properties of the fast-thermal coupling subcritical system consisting of uranium-lead and thorium-heavy water are analyzed.