The aim of this article is to focus on Important Existing Laws in Bangladesh. There are numerous laws in Bangladesh including those enactments which were inherited from yesteryear enacted by various authorizes according to competence under the constriction in force at the related time, these in herniated legislation are existing laws while using meaning of article 152(1) on the constitution of Bangladesh. The directory the existing laws may be classified as Supreme Law, Laws Relating to Civil Proceeding, Land Laws, Muslim Personal Laws, Other personal Law, Business Laws , Labour Law, Fiscal Laws Military Laws etc.