Abstract: Metrology is the science of measurement and its applications. Specifically, metrology implementation is an activity for unified measuring units and accurate, reliable quantity value, its technical level directly reflects the status of the scientific and technical development.By collecting and sorting lots of documents on the transform of units system, quantization technology, micronano dimension technology, space metrology technology, carbon nano materials technology, intelligent metrology technology. A summary of the development trend of foreign advanced metrology and measurement technology is given and a close analysis is made in this paper, providing a useful reference for the development of China’ national defense metrology and measurement.

Key words: Metrology, International system of units, Quantum effect, Micronano, Space metrology, Carbon nano materials, Intelligent metrology technology, Femtosecond laser　Terahertz