Abstract: According to the overseas research conclusion, an E shape steel damper that mild steel is used instead of high-strength steel was designed。The restore force model of E shape steel damper is studied through tests and numerical analysis. The results of test and simulation analysis show that the damper has very well hysteresis loop curve between force and displacement under cycle loading under considering the ideal elastic-plastic model. The analysis in this paper show that such design method can be applied to high-strength steel and reduce productive costs obviously.