This paper researched and exploited high strength hot rolling bulletproof steel B900FD. The chemical composition of B900FD was designed. The effects of different coiling temperatures on microstructure and mechanical property of bulletproof steel are discussed. The shooting test was carried out. The deformation characteristics and microstructure of the tested samples were analyzed. Cold forming and welding test were also progressed. The results show that B900FD has excellent strength and ductility compatibility. Shooting resistance property can satisfy the requirement of bulletproof steel. The machining and welding property can suit existing production process and reduce the cost. The comprehensive properties of developed B900FD steel achieve the standard of Protection specification for cash carrying vehicles (GA 164—2005).