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Aiming at the problem of mismatch between the maintenance management skills training system and the training needs, this paper applies the ISD/SAT model to design the maintenance management skills training system. In the process of system construction, the ISD/SAT model was applied to analyse the training needs, design the training content, system structure, business process and technology system, and implement the development of the system and evaluation module. After experimental testing, the average performance of the two experimental groups that partially used the training system and the one experimental group that fully used the training system were higher than the original group by 0.63 per cent, 1.34 per cent and 5.64 per cent, respectively, which indicated that the training system designed using the ISD/SAT method could improve the training effect.