提出一种确定关键指标的方法——关键系数。认为关键系数的确定方法一般只具有统计学性质;数据标准化方法与极值对关键系数会产生影响;关键指标有可能会影响权重的确定;关键指标确定方法在线性评价和非线性评价中均可以采用。 Proposed a method to determine the key indicators - the key coefficient. It is considered that the method of determining the key coefficient is generally only of statistical nature; the data normalization method and the extreme value have an impact on the key coefficient; the key index may affect the determination of the weight; the key index determination method can be used both in the linear evaluation and the nonlinear evaluation use.