Abstract: After reinforced concrete structures suffered from a fire,because of the impact of high temperature,a chemical change would occur in material of concrete,whose strength and ductility would be decreased,thus reducing the physical and mechanical properties of the whole structure and members,damages would be produced.According to a residential building suffered from a fire,it is mainly discussed the construction technology of strengthening beam and plate with high performance ferrocement.Engineering practice proves that this strengthening method has good effect,convenient construction and less cost.