Bangladesh is suffering from immense social, political, economic and environmental issues and these issues need to be addressed for the overall development of this country. For minimizing the environmental effect on the country activities should be done in a sustainable manner. This paper presented green banking initiatives of Islamic Bank Bangladesh Limited (IBBL) by analyzing the social responsibility of IBBL and environmental contribution to the economic development in Bangladesh. This study also identified the present condition of the bank regarding using solar energy, green banking culture and ecological balancing of different departments. In addition to that the author tried to identify some problems of IBBL for green banking and recommended some remedies to overcome those.