Bangladesh is a small country comprising of approximately 147,570 sq. kilometres land territory. But it is an overpopulated country having more than 16 crore citizens. With the boost of population Bangladesh will gradually turn its attention to rich marine resources for food and other needs of its people. It is reported by scientists that resources on sea are much more profile those on land. Since our land-resources are being exhausted gradually, it will be necessary for Bangladesh to depend increasingly on sea resources. This study is intended to highlight the economic benefit may be gained by Bangladesh from its maritime zones as well as focus on the challenges that Bangladesh has to face in achieving the benefit. It is also aimed to make some recommendations how the government of Bangladesh can overcome those challenges.