On　the　basis　of　equivalent　linearization,　this　paper　deduced　a　numerical　formula　to　compute　the　random　response　of　adjacent　buildings　linked　by　energy　dissipating　devices　under　the　disturbance　of　Kanai-Tajimi　spectra,　and　investigated　the　application　scope　of　this　seismic　resisting　system.　The　results　show　that　this　system　can　be　adopted　when　the　frequencies　of　two　sub-structures　are　obviously　different　and　the　earthquake　records　have　a　broad　range　of　frequency　contents,　which　has　been　proved　by　128　instances　of　nonlinear　time　history　analyses.　It　also　investigated　on　the　control　effect　of　equivalent　stiffness　and　equivalent　damping　of　linker　elements,　and　got　the　conclusion　that　it　is　better　to　choose　dissipating　devices　with　small　equivalent　stiffness　and　there　is　an　optimal　scope　for　equivalent　damping.