An air conditioning indoor unit comprising: a casing attached to a wall surface (W) facing an air conditioning target space (R), the casing having a blow-out port ; a fan disposed in the casing and sends air to the blow-out port ; a first horizontal blade configured to adjust an up-and-down wind direction of blow-out air flowing from the blow-out port to the air conditioning target space (R); a first drive unit configured to drive the first horizontal blade ; a second horizontal blade disposed closer to the wall surface (W) than the first horizontal blade and configured to adjust the up-and-down wind direction of the blow-out air; a second drive unit configured drive the second horizontal blade ; and a control device configured to control the fan and the first and second drive units , wherein the air conditioning indoor unit is capable of performing an operation in a first airflow control mode in which a distance between the first horizontal blade and the second horizontal blade is larger on a downstream side of a flow of the blow-out air than on an upstream side of the flow of the blow-out air, the blow-out air flows obliquely downward on an opposite side of the wall surface (W), a part of the blow-out air flows along a lower wing surface of the first horizontal blade , and another part of the blow-out air flows along an upper wing surface (5 1c) of the second horizontal blade , and the lower wing surface of the first horizontal blade has a protruding curved surface , characterized in that : the upper wing surface (5 1c) of the second horizontal blade includes a curved surface that is curved and protrudes in a thickness direction of the second horizontal blade . a casing attached to a wall surface (W) facing an air conditioning target space (R), the casing having a blow-out port ; a fan disposed in the casing and sends air to the blow-out port ; a first horizontal blade configured to adjust an up-and-down wind direction of blow-out air flowing from the blow-out port to the air conditioning target space (R); a first drive unit configured to drive the first horizontal blade ; a second horizontal blade disposed closer to the wall surface (W) than the first horizontal blade and configured to adjust the up-and-down wind direction of the blow-out air; a second drive unit configured drive the second horizontal blade ; and a control device configured to control the fan and the first and second drive units , wherein the air conditioning indoor unit is capable of performing an operation in a first airflow control mode in which a distance between the first horizontal blade and the second horizontal blade is larger on a downstream side of a flow of the blow-out air than on an upstream side of the flow of the blow-out air, the blow-out air flows obliquely downward on an opposite side of the wall surface (W), a part of the blow-out air flows along a lower wing surface of the first horizontal blade , and another part of the blow-out air flows along an upper wing surface (5 1c) of the second horizontal blade , and the lower wing surface of the first horizontal blade has a protruding curved surface , characterized in that : the upper wing surface (5 1c) of the second horizontal blade includes a curved surface that is curved and protrudes in a thickness direction of the second horizontal blade . <EOS>