Flax fiber fabric and aluminum alloy sheet with relative high toughness were hybridized interlaminar in order to fabricate plant fiber metal laminate（FML）， which promoted the impact properties of the composites. A series of surface treatments were carried out on aluminum alloy sheet to increase the specific surface area and enhance the interlayer bonding ability with matrix. The results show that the metal layer can effectively improve the initial stiffness， maximum impact load and energy absorption capacity of the composite， and change the failure mode of the composite from brittle failure to plastic failure. Compared with the flax fiber reinforced composite（FFRP）laminate， the maximum impact load and absorbed energy of fabricate flax fiber metal laminate（FFML） increase by 136% and 58%， respectively， and the damage area decreases by 84%.