首先介绍了项目管理成熟度模型的起因、历史。然后,对项目管理成熟度模型的五级结构、内容和各成熟度等级的行为特征,以及不同成熟度等级间的关系、模型的内部结构等进行了描述。最后,提出了三种项目管理成熟度评估方法和具体的成熟度评估步骤。 First introduced the project management maturity model causes and history. Then, the five-level structure and content of project management maturity model and the behavioral characteristics of each maturity level, the relationship between different maturity levels and the internal structure of the model are described. Finally, three project management maturity assessment methods and specific maturity assessment steps are proposed.