合同是现代社会商品交易的主要表现形式。在合同订立过程中,因一方当事人未尽必要的注意义务或滥用合同自由,而使他方当事人遭受损失的问题层出不穷。我国现行《合同法》比较完备地规定了缔约过失责任制度,对保护缔约方的合法权益具有重要的意义。本文试对缔约过失责任的产生前提、性质、构成要件以及主要适用类型作相关分析,以期在司法实践中正确地理解与适用这一制度。 Contract is the main form of commodity trading in modern society. In the process of contract formation, one party loses an equal portion of one’s losses due to failure to exercise due care or abuse of contract. The current “Contract Law” in our country provides a more complete system of responsibility for contracting negligence, which is of great significance to the protection of the legitimate rights and interests of contracting parties. This paper tries to make a related analysis on the premise, nature, constitutional elements and main applicable types of contracting fault liability in order to correctly understand and apply this system in judicial practice.