With the rapid change of social outlook and the emergence of new things, neologisms and neologisms have also become an eye-catching and vigorous field of vocabulary research. Since the reform and opening up, the social outlook has greatly changed , and new things have emerged one after another. New words and new expressions have also become an eye-catching, changing and vigorous field of vocabulary research. According to the definition of neologisms and neologisms, the author sorted out 100 neologisms and neologisms released in the past ten years (2011-2020) of "Chinese inventory of the top ten neologisms and neologisms of the year", supplemented some examples with reference to the report on the living conditions of Chinese language (2005-2020), and selected 200 high-frequency neologisms and neologisms in the past 15 years based on the standard of modern Chinese neologisms and neologisms (including more than 10000 entries from 1990 to 2016). From definition to Motivation and semantic classification, phonetic　and grammatical word-building features, word-making methods and teaching strategies ,all of the above are thoroughly analyzed from theory to practice.