There are important information,such as technical,economical and legal informaton in patent literatures,which has peculiarity. We can find the quantitative characteristics, distributed pattern and structure relation by patent measuring and analysis, which can be used widely in science, technology, innovation, industry, patent competition, patent strategy, patent policy, patent system and so on.Patent measuring and analysis has becorning huge industry.The generation and development of patentometrics have experienced four stages, shaped two core research fields, and batch of typical scholars and core literatures. The contents of patentometrics includes three areas, i.e. patent quantitative analysis, patent citation analysis and patent correlation analysis; three levels, i.e. national,institutional framework and inventor; and three aspects, i.e. theories, indicators and methods and application.Some progresses have been made in the researches on indicators and methods of patent quantitative analysis and value assessment.A batch of practical patent analysis tools have been developed, which are the base of quantitative patent analysis.Patentometics has extensivel application and development space in inventors,enterprises, laboratories,universities, research institutes, and governments.