Abstract: The change impact analysis can provide some useful information to software developers and managers during software development process, so it is significantly important. Aspect-oriented document-driven requirements engineering starts from textual requirements and provides a way and process of modularizing requirements in the forms of concerns and their relationships, identifying crosscutting concerns and creating formal requirements documentation. An approach to requirements change impact analysis is given under the framework of aspect-oriented document-driven requirements engineering approach, where concerns and variables relationships have been identifies with the usage of matrix, the impact scope of concerns and variables has been calculated, the impact weights of concerns and variables has been quantified. The effectiveness of our approach has been indicated with a case study.