Abstract. To solve the problem of lacking of systematic evaluation of the equipment's operational readiness that brings much difficulty to adapt to the requirements of the current transformation and construction equipment support, an evaluation model of operational readiness integrating entropy weight method and VIKOR method are established based on the selection of the proper operational readiness index. According to the relevant information of equipment service, the model is evaluated and validated. It is proved that this method can effectively evaluate equipment's operational readiness, and the research conclusion has certain reference significance for improving equipment's operational readiness.