Aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and method for manufacturing same

A method for manufacturing an aluminum alloy-plated steel sheet used for hot press forming, the method comprising:

• preparing a base steel sheet;
• dipping the base steel sheet in an aluminum plating bath that contains, by wt %, 3 to 30% of Zn, 0.1 to 1.5% of Si, and a balance of Al and unavoidable impurities to obtain an aluminum-plated steel sheet;
• performing cooling by supplying air heated to 200 to 300° C. to the aluminum-plated steel sheet after the aluminum plating to form an oxide film on a surface of the aluminum-plated steel sheet;
• and
• obtaining an aluminum alloy-plated steel sheet by on-line alloying in which heat treatment is performed continuously by maintaining the aluminum-plated steel sheet in a heating temperature range of 650 to 750° C. for 1 to 20 seconds after the cooling.