The Civil Code of Iran contains the principle of relativity of contracts in Article 231, which indicates that the contract concluded between persons is effective only for its contracting parties and does not affect others, except for Article 196, which refers to the obligation for the benefit of a third party. The title mentions an exception to this rule. The contracts that are concluded may have been dissolved for some reason and this contract dissolution has affected the rights of the contracting parties and third parties. The condition is subject to the contract that is included in it, therefore, with the termination of the basic contract, its conditions are also invalid. The results of this research show that with the confirmation and announcement of the termination ofthe basic contract, the obligations in it, including the obligations made for the benefit of the third party, will be null and void, and no effects and rights will be lost not only for the third party but also for The parties to the said contract do not realize it either. The authority of the third party is limited to requesting the fulfillment of the obligation bythe obligee and he only has the right to demand the obligation to fulfill the obligation because his will was not involved in the formation of the contract and he does not have the right to terminate it, but he can conditionally help in the direction of help. Ask him to compel the obligee to fulfill the obligation.