Forced convection heat transfer coefficient of cement clinker accumulation body is an important parameter for studying its heat transfer law. In view of the fact that there is no correlation for forced convection heat transfer of cement clinker accumulation body in grate cooler at present, this paper obtained more accurate forced convection heat transfer coefficient of cement clinker accumulation based on the experiment.Firstly, through the permeability experiment, the minimum unit which can effectively characterize the macro-physical properties of cement clinker accumulator was obtained, and the size of heat transfer experiment basket was determined. Then, based on the self-designed convective heat transfer experimental device, the temperature of cement clinker particles and the air temperature at the entrance and exit were measured. According to the law of conservation of energy and Newton"s cooling formula, the forced convective heat transfer coefficient of cement clinker stack is 19.13 .