This study uses abstracts from authoritative journals in the field of physics at home and abroad as corpus to examine the use of the first person pronoun “we” in Chinese and English abstracts. The results show that the frequency of using “we” in Chinese abstracts is significantly lower than that of using "we" in English translated abstracts. Research has found that the personal pronoun ‘we’ has positive interpersonal significance in building the academic identity of researchers, strengthening interaction with readers, highlighting innovative points and values, and gaining recognition from the academic community.