本文建立了基于故障树模型的航天器故障诊断框架，提出了航天器故障诊断的知识组织和表示方法及相应的推理控制策略，并通过对某卫星能源系统故障实验台的故障诊断验证了方法的正确性。 In this paper, a fault diagnosis framework for spacecraft based on fault tree model is established. The knowledge organization and representation method of spacecraft fault diagnosis and the corresponding inference control strategy are proposed. The fault diagnosis of a satellite energy system fault testbench is validated. Correctness