Gray theory was introduced and grey GM(1,1) and GM(1,2) was used to forecast service workload of large medical equipment respectively. It shows that service workload can be accurately forecast with two models, while the result calculated with GM(1,2) under consideration of number of medical equipment was more reasonable. The application of grey model can provide decisions for medical device maintenance management for clinical engineering department.%本文阐述了灰色理论的基本原理,并分别运用灰色理论模型GM(1,1)和GM(1,2)对大型医疗设备年维修量进行预测,结果表明两种模型预测结果都较为准确,将医疗设备数量作为影响因素的G(1,2)模型预测结果更为合理.应用灰色模型预测可为医学工程部门进行医疗设备维护管理提供决策依据.
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