Three-layer metal composite material and production method thereof

The invention discloses a three-layer metal composite material and a production method thereof. The three-layer metal composite material comprises a solder aluminum layer, an intermediate aluminum layer and a steel layer, wherein the intermediate aluminum layer is located between the solder aluminum layer and the steel layer, the Si content of the intermediate aluminum layer is 0.4-0.6wt%, and the thickness is 45-65 mu m. According to the three-layer metal composite material and the production method thereof, the thickness of the intermediate aluminum layer and the Si content of the initial intermediate aluminum layer are reduced, and the production cost is effectively saved on the premise that the performance is not affected.