The utility model provides a pair of syllogic aluminium alloy quenching device divides the three -section combination, and first section adopts the mode cooling of high wind + water smoke, and the second section adopts the mode of strong water smoke, and the third section adopts the high wind cooling, in the nozzle of every section different positions, but the adjustment of the flow proportion of wind and water, follow the aluminium alloy cross -section and arrange different forced air cooling and water -cooling nozzle, each nozzle flow stepless adjustable moreover all around to adapt to different cross -sections, different specification and material aluminium alloy ex -trusions's quenching, the amount of wind, the water yield of every section nozzle can be adjusted according to actual conditions. The utility model discloses syllogic aluminium alloy quenching device that the utility model patent provided can provide enough big cooling rate scope, can carry out the accurate control to the cooling rate of aluminium alloy different positions, realizes the different quenching technologies to different cross -sections, different specification and material aluminium alloy.