在核电厂全范围模拟机上采用人机交互作用（ＨＩ）分类的综合法及数据处理方法，研究操纵员在核电厂异常事件中的诊断与决策的可靠性，着重分析反应时间与方差所包含的信息。结果表明，在目前的条件下，我国核电厂操纵员的行为以规则型为主；诊断、决策过程中的不响应概率与规范化时间密切相关。 The comprehensive method and data processing method of human-computer interaction (HI) classification are applied to the full range of nuclear power plant simulators to study the reliability of the operator’s diagnosis and decision-making in the abnormal events of nuclear power plants. Emphasis is placed on the analysis of reaction time and variance information. The results show that under the current conditions, the behavior of NPP operators in our country is dominated by rules. The probability of non-response during diagnosis and decision-making is closely related to the normalization time.