International multimodal transport which is by far the most common type of transportation in the international arena is a type of carriage of goods by at least two different modes of transport without any interruption in the delivery, from one country by the multimodal transport operator to a different country with different legal systems. The purpose of the research was to explain "the liability of the multimodal transport operator in the convention on international multimodal transport of goods and its comparison with the code of Iran. In this research, the various dimensions of the rights and responsibilities of multimodal transport operator in international conventions, in particular the International Convention on multimodal transport of goods "Geneva (1980)", were compared with Code of Iran. The present study was conducted using a descriptive-analytical method with a library approach and a note-taking of documents and sources. The result of the study showed that the international multimodal transport operator is liable for the loss attributable to act or omission of act on the part of agents and servants; in addition, the basis of this responsibility lies with the fault of the agents and servants, violating the operator's contract obligations. Accordingly, a person who has incurred a loss shall refer to the transport operator who is one party of the contract instead of referring to the agent who has caused the loss claiming damages from him; therefore, awareness of the obligation of the operator concerning the law of commerce and his failure in fulfillment of the obligations in carriage of goods resulting in the loss of goods during the course of obligations under the contract, the nullity of the contract and the implementation of the exchange guarantee, prevent the operator from being vindicated, receiving payment of compensation specified in the contract.
