针对研制阶段金字塔式的系统可靠性增长试验过程，建立了一个系统可靠性增长的综合评估模型。提出了将子系统可靠性增长试验数据折合为指数寿命型试验数据的方法。利用系统可靠性结构，系统可靠性原点矩与子系统可靠性原点矩之间的关系，将子系统试验数据综合为系统试验数据，并分别针对系统有、无增长试验数据的情况，设计了不同的评估方法。最后给出一个应用实例 Aim at the pyramid-based system reliability growth test during the development stage, a comprehensive evaluation model of system reliability growth is established. A new method of substituting subsystem reliability growth test data into exponential life test data is proposed. Based on the relationship between the system reliability structure, the origin moment of the system reliability and the origin moment of the reliability of the subsystem, the subsystem test data are integrated into the system test data, and different experimental data are designed for the system with and without growth separately Assessment method. Finally, an application example is given