文章讨论了现代汉语中用肯定形式表达否定的语用否定句。文章考察后认为,用肯定形式表达否定这种现象在单句、复句中都存在。在单句中有状语后置式否定、主宾不容式否定、答非所问式否定三种类型,在复句中有附加条件式否定、先承后转式否定、因果推断式否定三种类型。它们都有一个共同的特点,就是用肯定的形式来表达否定的意思。之所以能够产生这种语用效果,是因为说话人有意地偏离逻辑、超越逻辑甚至是违反逻辑。 The article discusses the use of affirmative expression of negative pragmatic negative sentences in modern Chinese. After examining the article, it is considered that the phenomenon of expressing negation in affirmative form exists in single sentences and complex sentences. There are three types of negation in adverbial clause, negative negation in adverbial clause, negation in causal affirmative, negative in causal inference. They all share a common feature of expressing the negative in a positive way. The reason for this pragmatic effect is that the speaker deliberately deviates from the logic, goes beyond the logic, and even violates the logic.