Abstract:Combining the risk diagnosis method of FMECA analysis, the algorithm steps of the information accumulation in interval number in C-POWA operator, and the application of weight multiplier in dynamic evaluation, this paper puts forward the dynamic risk assessment model of core manufacturer of manufacturing supply chain. Based on the three-level supply chain operation model consisting of a single supplier, a single manufacturer, and a single distributor, the application flow chart method is used to analyze the risk factors the core manufacturer"s operation faces in the manufacturing supply chain, and this paper applies FMECA analysis to diagnose the value of the risk factor attribute index, according to the features of C-POWA operator gathering the attribute interval index value in the algorithm step of the multi-sequence attribute interval number information aggregation, and applies the weight multiplier to determine the dynamic weight of the evaluation index. Finally, the calculation and analysis of the above process are carried out with practical examples to illustrate the feasibility and effectiveness of the evaluation model.