To ensure the high-quality completion of pressure gauge calibration work, several key points of quality control need to be grasped. First, regular maintenance and traceability of calibration equipment. As the measurement benchmark, the accuracy of calibration equipment directly affects the calibration results. Therefore, it should be maintained according to the specified cycle and sent to professional institutions for value traceability regularly to ensure that it is always in a precise and reliable state. Second, standardization of calibration operations. Develop detailed and strict calibration operating procedures. Operators must perform each step of the operation strictly in accordance with the procedures, from connecting the equipment to reading the data. Any link is not allowed to be changed or simplified at will to ensure the consistency and accuracy of the calibration process. Third, review and verification of calibration results. After the calibration work is completed, professional quality control personnel should conduct a comprehensive review of the calibration data, calculation process and final results. If necessary, use other independent verification methods for cross-verification. Only the calibration results that have passed the review and verification can be recognized and applied, thus ensuring the quality reliability of the pressure gauge calibration work and providing a solid guarantee for the subsequent equipment use and production process.