Abstract: Eco-tourism is comparatively a new term in tourism literature. Conservation of nature and culture is the main issue for promotion and development of ecotourism. It has been regarded as the third biggest industry in the world along with conventional tourism. In Bangladesh, eco-ourism is in its infancy. But she belongs to a high ecotourism potentiality. Our forests, beaches, rivers, birds, ethnic races would be the main attractions of ecotourists. The country and its relevant government agencies are faced various problems to exploit enormous nature based tourism potentiality. The paper is a modest attempt to explain the present situation of eco-tourism development in Bangladesh from development viewpoint and with a critical assessment. The paper is prepared based on published and unpublished secondary sources.