The fuzzy language in business has mainly three forms, which include the fuzzy words, hedges and fuzzy sentence。 Fuzzy words mainly refer to the words with uncertain extension。 In business letters, people often use adjectives with uncertain extension to describe the goods, in order to achieve the purpose of persuading the customer。 Hedges refer to the words that make things vague, its flexibility can prevent absolute expression of language, “we regret”, “almost”, “probably”, “more or less” etc are common hedges。 Fuzzy sentences include fuzzy passive structure, fuzzy negative structure and fuzzy clauses and tone。