When population becomes very big in relation to the ability of food production is called population explosion. Now the world has a population of about five hundred crores. The population of the world especially in the third world countries is increasing very rapidly. If population increases this way, the whole world will face a serious consequence. So, the whole world is very concerned about population problem. Bangladesh is the most densely population country in the world. It is a small country of 55598 square miles. But it has a population over 120 million. About 1500-1600 people live in one square miles. Every year more than two million people are being added to our population. The problem now out of control. It has now come to the position of explosion. The area of Bangladesh is too small to support her vast population. As a result it creates food problem, communication problem, educational problem, unemployment problem, shelter problem, health problem. Medical problem, environmental problem and poverty. We should, therefore, learn well all about this great problem. We should realize the serious consequences of rapid growth of population. There are various ways that should be followed to stop the high birth rate. Each and every family should live in a planned way. Early marriage should be banned. No family should be allowed to have more than two children. Our womenfolk should be educated so that they can know how to lead a happy, healthy and peaceful life. There should be wide publicity about the serious consequence of high birth rate through Radio, TV and other mass media.