To provide an aluminum alloy composite material excellent in bending fatigue characteristics, corrosion resistance and strength and suitable for the radiator and heater core of an automotive heat exchanger.

This material is the one in which an Al alloy contg., by weight, 0.15 to 0.8% Si, 0.1 to 0.5% Fe, 0.8 to 1.6% Mn, 0.2 to 0.8% Cu, and the balance Al with inevitable impurities is used as a core, and one side of the core is clad with a sacrificial anode material contg. 1 to 10% Zn, Cu in the range of ±30% of the content of Cu in the core, and the balance Al with inevitable impurities.