Prime purpose of this report is to discuss different Modes of Investment of Islami Bank Bangladesh Limited. Investment, is something that is usually purchased with money that may be expected to produce earnings or profit. Investments may be broken into three fundamental groups: ownership, lending in addition to cash equivalents. Other objectives of this report is to analysis Islami Banking and analysis how an Islami Bank earns its profits through investment. Finally focus on the scenario of mode of investment and finding out the overall financial performance of Islami Bank Bangladesh Limited comparing with the other financial banks.