A hot-press formed member, comprising: a base steel sheet including, by weight%, 0.04-0.5% of C, 0.01-2% of Si, 0.1-5% of Mn, 0.001-0.05% of P, 0.0001-0.02% of S, 0.001-1% of Al, 0.001-0.02% of N, and a balance Fe and other impurities, wherein the base steel sheet further optionally includes, by weight%, one or more of 0.001-0.01% of B, 0.01-1% of Cr, and 0.001-0.2% of Ti; and an aluminum alloy plated layer formed on the base steel sheet, wherein the aluminum alloy plated layer includes: an alloying layer (I) formed on the base steel sheet and including, by weight%, 5-30% of Al, 0-10% of Si, and a balance of Fe and other inevitable impurities; an alloying layer (II) formed on the alloying layer (I) and including, by weight%, 30 to 60% of Al, 0-5% of Si, and a balance of Fe and other inevitable impurities; an alloying layer (III) formed on the alloying layer (II) and including, by weight%, 20-50% of Al and 5-20% of Si, and a balance of Fe and other inevitable impurities; and an alloying layer (IV) formed continuously or discontinuously on at least a portion of a surface of the alloying layer (III) and including, by weight%, 30-60% of Al, 0-5% of Si, and a balance of Fe and other inevitable impurities, wherein a ratio of the alloying layer (III) exposed on an outermost surface of the aluminum alloy plated layer is 10% or more. a base steel sheet including, by weight%, 0.04-0.5% of C, 0.01-2% of Si, 0.1-5% of Mn, 0.001-0.05% of P, 0.0001-0.02% of S, 0.001-1% of Al, 0.001-0.02% of N, and a balance Fe and other impurities, wherein the base steel sheet further optionally includes, by weight%, one or more of 0.001-0.01% of B, 0.01-1% of Cr, and 0.001-0.2% of Ti; and an aluminum alloy plated layer formed on the base steel sheet, wherein the aluminum alloy plated layer includes: an alloying layer (I) formed on the base steel sheet and including, by weight%, 5-30% of Al, 0-10% of Si, and a balance of Fe and other inevitable impurities; an alloying layer (II) formed on the alloying layer (I) and including, by weight%, 30 to 60% of Al, 0-5% of Si, and a balance of Fe and other inevitable impurities; an alloying layer (III) formed on the alloying layer (II) and including, by weight%, 20-50% of Al and 5-20% of Si, and a balance of Fe and other inevitable impurities; and an alloying layer (IV) formed continuously or discontinuously on at least a portion of a surface of the alloying layer (III) and including, by weight%, 30-60% of Al, 0-5% of Si, and a balance of Fe and other inevitable impurities, wherein a ratio of the alloying layer (III) exposed on an outermost surface of the aluminum alloy plated layer is 10% or more. an alloying layer (I) formed on the base steel sheet and including, by weight%, 5-30% of Al, 0-10% of Si, and a balance of Fe and other inevitable impurities; an alloying layer (II) formed on the alloying layer (I) and including, by weight%, 30 to 60% of Al, 0-5% of Si, and a balance of Fe and other inevitable impurities; an alloying layer (III) formed on the alloying layer (II) and including, by weight%, 20-50% of Al and 5-20% of Si, and a balance of Fe and other inevitable impurities; and an alloying layer (IV) formed continuously or discontinuously on at least a portion of a surface of the alloying layer (III) and including, by weight%, 30-60% of Al, 0-5% of Si, and a balance of Fe and other inevitable impurities, wherein a ratio of the alloying layer (III) exposed on an outermost surface of the aluminum alloy plated layer is 10% or more. <EOS>