Abstract: Buffer management is an important content in theory of constraint.A dynamic buffer monitoring method is proposed to deal with how to implement buffer management in critical chain project management.This method dynamically calculates the buffer size and the time instant for monitoring,and adjusts the place of the two control trigger points to control the project,so that the project manager can timely take co rrectaction to meet project deadline.Finally,a computational experiment is carried out to demonstrate the application of the proposed method.Comparison of the proposed method with the absolute buffer monitoring and relative buffer monitoring in critical chain project management,are performed to validate the effectiveness and pyacticability of the proposed method.

Key words: critical chain project management, buffer management, scheduling control, dynamic buffer monitoring