Coal combustion product (CCP) is generated after combustion of coal in thermal power plants. Generation of CCP depends on the combustion efficiency and properties of coal. Developing countries are producing large quantity of CCP due to the high ash content of coal. Utilization of CCP is a major challenge to the technical and scientific community. In recent years, researches are trying to solve this problem using of CCP in mine fill. Hydraulic transportation of CCP is a major concern for this type of utilization. Present paper tries to compile various types of CCP along with studies related to hydraulic transportation.