Abstract: The paper discusses the explanations of difficult words in Dunhuang Bianwen, such as Cujiu(粗牞), Dawo(□我), Tuangu(团估), etc. closely examined by Zhao Jiadong and Fu Yiqin in their work Reading the Words and Phrases in 'Notes of Dunhuang Bianwen'. It points out that some difficult words have been explained and annotated by scholars, while others remain doubted.