In this paper, the seismic damage analysis and control design of passive energy dissipation system installed in reinforced concrete structures have been studied. At first, based on large quantities of research results on seismic damage and energy dissipation at home and abroad, a seismic damage analysis method of energy dissipation structures and a practical way for weak floor seismic damage computation are put forward. Then, on the basis of three-level performance objectives suggested in reference [5] for seismic damage of reinforced concrete structures, a method is hereby given for seismic damage control design. Lastly, the feasibility and validity of these methods are verified through a design example.