Rohingyas are an ethnic group who are connected to the history of British colony in Indian subcontinent. These people have been living in the place Rakhine (former name Arakan) for hundred years. They are Muslims in faith and culturally near to the Bengali culture as before colonial period Arakan was a combined kingdom with the Eastern part of Bengal (now this part is in the Bangladesh).After the independence of Burma in 1948 ( now Myanmar) Arakan became the part of Myanmar. In 1962 emergence of army coup and marshal law in Myanmar, brought misfortune for these people. Due to persecution, refusal to recognize as the citizens of Myanmar they have been pushed by the army ruler to the boarder of Bangladesh, claiming on their ethnic identity of Bengali. Since then a migration process of these people started in different neighboring countries, Bangladesh, India, Thailand, Indonesia, Malaysia and Saudi Arabia. In Bangladesh these people came in different times but last year the persecution has got the form of genocide which pulled them to escape from the Rakhine and crossed the boarder facing a hundred of people killing, rape,burning houses and so on. Bangladesh is trying to solve this problem diplomatically and expecting support of two of powerful neighbors India and China. In fact these two countries have close economical and geographical interest in Myanmar. Hence they are not willing to interfere the internal issues of this country. In this article the Author describes the historical background of Rohingyas and with the help of historical method analyzes the challenges of Bangladesh which has arisen from this problem.