Child sexual abuse is not only serious or dangerous issue but also very complexed and universal problem. As is crucial to talk over, concerning that children are the next future generation and valuable asset who will play important parts for the essence of the country and nation. The child sexual abuse is much mountainous problem than it has been expected. If we try to follow the historical background of child sexual abuse, then we find it first turned into an open issue in the late 1970 and 1980. But before that time it was hidden topic up to 1968, 44 out 50 U.S states had authorized compulsory laws that was mandatory to all doctors to report instances of suspicious child abuse. But in present world child sexual abuse not only the subject of U.S it also subject in all the countries in the world. In Bangladesh, child sexual abuse is also very serious problem. And it increases day by day. We therefore like to discuss in our research work the overall scenario of child sexual abuse in Bangladesh regarding this human matter.