In this paper,through the reference of the existing engineering examples of stainless steel reinforced concrete,the application of low-nickel stainless steel rebar was analyzed. The status,scientific problems and progress of corrosion research for lownickel stainless steel rebar in concrete environment as well as the existing problems in the process of its subsequent application were discussed. This paper provides the reference for the large-scale promotion and use of low-nickel stainless steel reinforced concrete in future.