The invention discloses a method for preparing a copper-lead alloy/steel bimetal laminated composite material, which comprises the following steps of: treating a steel plate and preheating to the temperature of between 150 and 200 DEG C in a resistance furnace; coating saturated ZnCl2 solution on the surface of the steel plate and preheating to the temperature of between 200 and 600 DEG C; smelting copper-lead alloy liquid in a medium-frequency induction furnace, namely putting charcoal and electrolytic copper into the medium-frequency induction furnace in turn, adding tin and lead after the electrolytic copper is melted, uniformly mixing and deoxidizing to obtain the copper-lead alloy liquid; and preheating a graphite mold to the temperature of 600 DEG C in a box-type resistance furnace,putting a steel substrate into the graphite mold, casting the copper-lead alloy liquid at the temperature of between 950 and 1,100 DEG C, opening the mold to take the composite material out after thetemperature of the alloy is reduced to 300 DEG C, and performing air cooling. The method has the advantages of simple process and low cost; and the composite material has the advantages of high interface bonding strength, good alloy structure, and capability of meeting the operational performance of the copper-lead alloy.