Generally hull insurance is undertaken by mean of a contract of hull insurance. A contract of hul1 insurance here is a contract whereby the insurer undertakes to indemnify the assured against the loss and damage to the vessel mused by maritime perils. A contract of hull insurance is consists of printed main insurance clauses and a clause includes many sub-clauses. Now the Institute Time Clauses-Hulls (hereunder refer to as "English hull insurance clauses"made by the Institute of London Underwriters is much used as the standard from or basic from by many countries ail over the world Now Korean insurance companies hue not made our their own hull insurance clauses, they have just adopted the made-out English hull insurance clauses and the english law and practice to solve the problem related to marine insurance. On the other hand, the United States of America and Japan have made out their own hull insurance clauses based on English hull insurance clauses and used the clauses for many years. Now American is using American Institute Hull Clauses(hereunder refer to as "American hul1 insurance clauses"as its own clauses which was made out by American Institute of Marine Underwriters in 1977 and Japan is also wing its own clauses named Japanese Hull Standard Clauses(hereunder refer to as "Japanese hull clauses") which was made out by japanese Hull Insurance Association in 1990. Therefore the purpose of this study is not only to make a comparative study on English hull insurance clauses 1995, American hull insurance clauses 1977 and Japanese hull clauses l990, but also to supply on some legal materials necessary for Korea to establish and perform our own hull insurance clauses.