目的　探讨灰色GM(1,1)模型在医院感染监控中的效用。方法　简介灰色GM(1,1)模型条件和方法 ,并给出应用实例。结果　灰色GM (1,1)模型可用于医院感染预测 ,其残差检验可作为评价医院感染监控工作的指标。结论　灰色GM(1,1)模型在医院感染监控工作中有实用价值 Objective To explore the utility of gray GM (1,1) model in monitoring hospital infection. Methods The conditions and methods of the gray GM (1,1) model are introduced and the application examples are given. Results The gray GM (1,1) model can be used to predict nosocomial infection. The residual test can be used as an index to evaluate the surveillance of nosocomial infections. Conclusion Gray GM (1,1) model has practical value in the surveillance of hospital infection