This report summarizes the lessons learned on the behavior of concrete dams under earthquake, from the collaboration between the French and Japanese Committees on Large Dams from 2013 to 2016, but also from the symposium held in 2016 in Saint-Malo about qualification of dynamic analyses of dams and their equipment. Behavior of gravity and arch dams are addresses through several aspects: measurements and observations on concrete dams hit by earthquakes, ambient vibration measurement to better assess the behavior of dams, numerical analyses of dams and design method for concrete dams in high seismic intensity area.