The invention discloses a high-strength heat resistant aluminum alloy material and a preparation method thereof. The material comprises the following components in percentage by weight: 1.0-10.0 percent of Cu, 0.05-1.5 percent of Mn, 0.01-0.5 percent of Cd, 0.01-0.5 percent of Ti, 0.01-0.2 percent of B, 0.01-1.0 percent of Zr, 0.001-0.1 percent of Be, 0.01-1.0 percent of W, 0.05-5 percent of RE and the balance of Al. In the invention, under the guidance of high-quality melts, solid solutions and a phase diagram theory, through optimizing the formulas of main alloy elements of Cu, Mn and RE ,the alloy quasi solid-phase temperature range is reduced and the problems of large heat tearing tendency, low product high-temperature strength, and the like are solved; and a low-cost multielement microalloy element formula is optimized, which creates a material base condition for the culture and the grain refining of a high-temperature phase and a strengthening phase in solid solutions so as to finally develop the high-strength heat resistant aluminum alloy material.