Patient-specific dosimetric verification is an important component of quality assurance processes for intensity-modulated radiotherapy (IMRT), which plays a critical role in ensuring the safety and quality of IMRT. There has been no national practice guideline or explicit recommendations for tools and methods for patient-specific IMRT dosimetric verification in China. Interpretation and clinical significance of verification results, causes and management interventions for IMRT dosimetric verification failure, tools and methods and implementation details significantly differ among different institutions. Under the guidance and organization of Radiation Oncology Quality Control Committee, National Quality Control Center of Cancer Theranostics, this guideline was formulated based on the results of national survey, multi-center validation test, expert discussion, consultation and review. This guideline specifies the requirement of institution, organization, personnel, tools and device, technical workflow, and documentation, aiming to improve the standardized implementation of IMRT dosimetric verification procedures.