This essay states about the assimilation in English phonetics,it emphasizes the historical assimilation and give the examples of the progressive assimilation,regressive assimilation and reciprocal assimilation.

At the beginning of the 20th century,the central content of cultural identification in modern history was to realize the noble ideal of overthrowing feudal autocracy and establish the Democratic Republic,which catered to the world development and became the target of many youth.

In the era of globalization, to implement the national identity in primary and secondary schools in China, it needs to establish the political identity through ideological and political education, set up cultural identity through tradition culture, and strengthen historical identity education through historical education.

Merging of nationalities became a historical trend at the same time,which is apparently reflected in the historical identity,cultural identity,systematic identity and historical lessons.

The senses of historical culture identity, unity consciousness and the distinguished family concept contained in its historical essays reflects the history process of Weijin Southern and Northern Dynasty period from national dispute and national emerging to the reunity, which has unignorable characteristics and value.