Websites have increasingly become indispensable channels for various institutions to publish information,and us-ers are also accustomed to obtain information through browsing the web pages.With the rapid increase in the amount of public infor-mation,there are inevitably some errors in the process of text editing and proofreading.Automatic text proofreading is a necessary auxiliary means.At present,there are many studies and tools for text editing errors proofreading.However,it is difficult to find knowledge representation errors due to lacking specific domain knowledge and semantic relationships.This paper focuses on the re-search on text proofreading of knowledge representation errors,and proposes a domain knowledge-oriented text proofreading method based on knowledge graph.Experimental results show that this method can detect semantic errors in web pages and extend the gener-al text proofreading tools.