针对多模自适应 （ Ｍ Ｍ Ａ Ｅ） 故障检诊 （ Ｆ Ｄ Ｄ） 方法的局限性， 提出了一种基于交互多模 （ Ｉ Ｍ Ｍ ） 估计策略的动态系统中多重故障的检诊方法。交互多模估计技术是针对包含有结构以及参数变化的系统的一种效率较好的自适应估计技术， 它提供了故障检测、诊断和状态估计的集中框架。通过对在传感器和作动器中含有多个故障飞机的仿真， 结果表明， 所提供的方法比其它方法能够更快、更可靠地检测和隔离出多重故障。 Aiming at the limitation of multi-modal adaptive fault detection (FDM) method, a multi-mode MMI method is proposed to detect multiple faults in a dynamic system. IMM is a more efficient adaptive estimation technique for systems that contain structural and parameter changes. It provides a centralized framework for fault detection, diagnosis, and state estimation. The simulation of multiple faulty aircraft with sensors and actuators shows that the proposed method can detect and isolate multiple faults faster and more reliably than other methods.