The invention discloses a hybrid strengthened aluminum matrix composite and a preparation method of the hybrid strengthened aluminum matrix composite and belongs to the field of casting metal matrix composites. The matrix of the material is aluminum or an aluminum alloy, and nano-sized SiC particles and other nanoparticles are used as the strengthening phase. The invention further provides the method for preparing the hybrid strengthened aluminum matrix composite. The method comprises the following steps that firstly, under vacuum or argon protection, nano-sized SiC powder, one or more of other nanoparticles and micro-sized aluminum or aluminum alloy powder are mixed, and millimeter-sized composite particles are prepared; and then the millimeter-sized composite particles are pressed into a prefabricated intermediate alloy block, then the intermediate alloy block is added to aluminum or aluminum alloy melt, through refining and degassing processing, scum and oxide inclusions are stripped off, mechanical mixing and ultrasonic vibration are applied, the nano-sized ceramic particles are promoted to be uniformly dispersed in the metal melt, and the nano-sized ceramic particle hybrid strengthened aluminum matrix composite is prepared. According to the hybrid strengthened aluminum matrix composite and the preparation method, the multi-phase hybrid strengthened supplementary effect and advantage are fully played, and all the performances of the metal matrix composite is improved remarkably.