Abstract : this paper describes automatic text proofreading development in and outside our country , then puts forward two automatic proofreading techniques about error detection and error correction by analyzing chinese text errors : matching technique of words based on word material statistics and understanding technique based on natural language understanding 文摘:對文本自動校對國內(nèi)外發(fā)展現(xiàn)狀進(jìn)行描述,針對中文文本出現(xiàn)錯誤的狀況進(jìn)行分析,提出了查錯、糾錯的兩類自動校對技術(shù):基于語料統(tǒng)計的詞的匹配技術(shù)和基于自然語言理解的理解技術(shù)。