An air conditioning indoor unit comprising: a casing having a blow-out port through which air from a fan is blown out; a first horizontal blade configured to adjust an up-and-down wind direction of blow-out air from the blow-out port; a first drive unit configured to drive the first horizontal blade; a second horizontal blade disposed on a rear side of the first horizontal blade and controls the up-and-down wind direction of the blow-out air; a second drive unit configured to drive the second horizontal blade; and a control device (100, 200) configured to control the fan, the first drive unit, and the second drive unit, characterized in that the control device (100, 200) is configured to perform an operation in a first airflow control mode after performing an operation in a second airflow control mode, in the first airflow control mode, a distance between the first horizontal blade and the second horizontal blade is set to be 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, part of the blow-out air is allowed to flow along a lower wing surface of the first horizontal blade, and another part of the blow-out air is allowed to flow along an upper wing surface of the second horizontal blade, in the second airflow control mode, a separation angle between the first horizontal blade and the second horizontal blade is set to be smaller than a predetermined separation angle between the first horizontal blade and the second horizontal blade in the first airflow control mode, part of the blow-out air is allowed to flow along a lower wing surface of the first horizontal blade, and another part of the blow-out air is allowed to flow along an upper wing surface of the second horizontal blade, wherein a Coanda effect on the lower wing surface of the first horizontal blade and the upper wing surface of the second horizontal blade is maintained during a shift from the second airflow control mode to the first airflow control mode, and the fan has a number of rotations that is set larger in the operation in the second airflow control mode than in the first airflow control mode. a casing having a blow-out port through which air from a fan is blown out; a first horizontal blade configured to adjust an up-and-down wind direction of blow-out air from the blow-out port; a first drive unit configured to drive the first horizontal blade; a second horizontal blade disposed on a rear side of the first horizontal blade and controls the up-and-down wind direction of the blow-out air; a second drive unit configured to drive the second horizontal blade; and a control device (100, 200) configured to control the fan, the first drive unit, and the second drive unit, characterized in that the control device (100, 200) is configured to perform an operation in a first airflow control mode after performing an operation in a second airflow control mode, in the first airflow control mode, a distance between the first horizontal blade and the second horizontal blade is set to be 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, part of the blow-out air is allowed to flow along a lower wing surface of the first horizontal blade, and another part of the blow-out air is allowed to flow along an upper wing surface of the second horizontal blade, in the second airflow control mode, a separation angle between the first horizontal blade and the second horizontal blade is set to be smaller than a predetermined separation angle between the first horizontal blade and the second horizontal blade in the first airflow control mode, part of the blow-out air is allowed to flow along a lower wing surface of the first horizontal blade, and another part of the blow-out air is allowed to flow along an upper wing surface of the second horizontal blade, wherein a Coanda effect on the lower wing surface of the first horizontal blade and the upper wing surface of the second horizontal blade is maintained during a shift from the second airflow control mode to the first airflow control mode, and the fan has a number of rotations that is set larger in the operation in the second airflow control mode than in the first airflow control mode.