The principle objective of this report is to analysis Different Modes of Investment on Islami Bank Bangladesh Limited. General objective of this reports are to understand Islamic view in banking sector and to find out the superiority of Islamic banking over conventional banking, analyze Islami banking practice of Islami Bank Bangladesh. Here also analyze various functions of Islami Bank like general banking, Investment and Foreign exchange. Finally find out the problem and how to improve the performance of the IBBL and to make recommendation to eliminate the problems faced by Islami Bank Bangladesh on it’s over all activities.