论第三人利益合同法律关系之形成与变动

第三人利益合同成立须符合基础合同有效成立、受诺人与允诺人须有使第三人受益的意图、受诺人与允诺人须使第三人直接取得权利、第三人必须特定等要件。其变动规则是：合同当事人不得随意变更、撤销利益第三人约款。经第三人同意当事人可约定解除第三人利益合同。在法定解除情形,合同当事人行使合同解除权无须第三人同意。

On the Formation and Reformation of Jural Relation of Contract for the Benefit of Third Party

There are four important qualifications when the contract for the benefit of third party comes into being.First,basal contract must form availably.Second,promisee and promisor must have intention to benefit the third party.Third,the third party must acquire rights from promisee and promisor directly.Forth,the third party must be specified.Parties of contract can not change nor cancel articles benefiting third party optionally.However,they can agree to cancel contract for the benefit of third party when the third party agrees.On legal conditions of canceling contract,they can cancel without third party＇s agreement.