Every person who is interested in marine adventure has an insurable interest of goods on the voyage. In a contract on CIF terms, the owner of property or the person bearing the risk of goods after the time they have crossed the rail may all have their own interest in consequence of the benefits brought by the safety or due arrival of insurable property. In practice in trade, on the other hand, the assured on the policy would also vary in different situations in order to fulfill the requirement of some special contractual terms, such as “right of disposal”. Therefore, it is extremely critical to see either the property owner or the risk bearer is the assured on the policy at the time of loss, in order to determine who the person having rights to claim against the insurer is. This article tries to clarify the concept of insurable interest in marine insurance through the discussion of some cases, and gives some advices for solving problems as well.