Satellite fault diagnosis model updating method and device

The invention provides a satellite fault diagnosis model updating method and device, and the method comprises the steps: obtaining a plurality of historical fault diagnosis models and a current data set of a satellite; screening out a target historical fault diagnosis model from the plurality of historical fault diagnosis models; on the basis of the target historical fault diagnosis model, performing incremental training by using the current data set to obtain a first fault diagnosis model; training by using the current data set to obtain a second fault diagnosis model; and updating the second fault diagnosis model according to the first fault diagnosis model to obtain an updated fault diagnosis model. According to the method, satellite fault diagnosis model updating based on data driving is carried out, new knowledge contained in a current data set can be learned, historical knowledge can be reserved, and the reliability and robustness of satellite fault diagnosis can be improved. 本申请提出一种卫星故障诊断模型的更新方法及装置，其中，