Purpose/Significance To introduce the evaluation standard system of hospital informatization construction in China, so as to facilitate hospitals to deeply understand the standards and promote the implementation of them. Method/Process The standard system (including application level evaluation of electronic medical record system, intelligent service evaluation of hospital, intelligent management evaluation of hospital and standardized maturity evaluation of hospital information interconnection) is interpreted from the overall situation, evaluation method and evaluation index of evaluation criteria. Result/Conclusion Evaluation standards are the “baton” to promote the construction of hospital informatization, and in-depth understanding of standards is the premise of promoting the construction of hospital informatization. Hospitals should choose the priority order of participating in evaluation reasonably.