In the process of social development, metrology is an important foundation for economic activities, national defense construction, scientific research and social development. The development of science and technology depends on the development of metrology and testing technology, which provides a reliable basis for science and technology. With the development of science and technology, the accuracy level of instrument products is getting higher and higher, which promotes the continuous improvement of instrument calibration. Doing a good job in instrument testing is an important basis for ensuring product quality. Therefore, it is even more important to do a good job in the quality of metrology and calibration. Metrology and calibration develop with the development of social production and science and technology. In a certain sense, it marks the level of modernization of a country. With the development of society, metrology is increasingly recognized and used by people, especially in modern society, which has far exceeded the scope of weights and measures. Metrology and calibration play a fundamental role in the production of industrial enterprises. Metrology work is an important means for industrial enterprises to improve economic benefits. Strengthening the management of instruments and meters, metrology standard instruments is the basis for ensuring the quality of metrology work. First of all, instruments and meters, metrology standard instruments should be strictly verified and calibrated according to the requirements of the quality manual to ensure normal operation and accuracy within the validity period. In addition, it is necessary to do a good job in the maintenance of instruments and metrology standard instruments, which is very important to ensure the quality of metrology and calibration work. Ensure the quality of verification and calibration original records and certificates. Metrology and calibration work is a scientific and rigorous work. From verification and calibration original records to the issuance of certificates, there can be no carelessness. Authenticity, integrity, accuracy and reliability are the most basic requirements for original records.