This study investigates the load-carrying mechanism and design methods of concrete-infilled double steel corrugated-plate walls with T-section (T-CDSCWs). CDSCWs consist of wall elements and boundary elements. The wall elements consist of outer steel corrugated plates, infilled concrete, and intermediate bolts connecting steel corrugated plates. The boundary elements consist of steel rectangular tubes and infilled concrete. Due to the interaction between steel and concrete, as well as the constraining effect of intermediate bolts, CDSCWs exhibit excellent load-carrying performance.