A method for producing a microcapsule powder, the method comprising a concentration step of supplying an aqueous dispersion of a microcapsule into a cyclone and concentrating the aqueous dispersion, wherein the cyclone comprises: a cylindrical member having a cylindrical member inlet and defining a cylindrical space, a conical member attached to one end of the cylindrical member, defining a conical space, and having a conical member outlet, a tubular member attached to the other end of the cylindrical member and having a tubular member outlet, the conical space communicating with the cylindrical space, and the tubular member having an interior space (70, 72) that communicates with the cylindrical space, and the concentration step comprises: an aqueous dispersion-supplying step of supplying the aqueous dispersion into the cylindrical member inlet, and a concentrated dispersion-recovering step of recovering a microcapsule dispersion discharged through the conical member outlet, and the cyclone further comprises a relaxation member connected to the conical member, defining a flow-in space into which the microcapsule dispersion discharged through the conical member outlet flows, and relaxing the strength with which the concentrated microcapsule dispersion is discharged, and the concentrated dispersion-recovering step comprises: a flow-in step in which the microcapsule dispersion flows out of the conical space into the flow-in space and, at the time of discharge through the conical member outlet, the microcapsule dispersion receives pressure that is higher than the atmospheric pressure outside the relaxation member, and a discharge step of discharging the microcapsule dispersion within the relaxation member out from the relaxation member. a cylindrical member having a cylindrical member inlet and defining a cylindrical space, a conical member attached to one end of the cylindrical member, defining a conical space, and having a conical member outlet, a tubular member attached to the other end of the cylindrical member and having a tubular member outlet, the conical space communicating with the cylindrical space, and the tubular member having an interior space (70, 72) that communicates with the cylindrical space, and the concentration step comprises: an aqueous dispersion-supplying step of supplying the aqueous dispersion into the cylindrical member inlet, and a concentrated dispersion-recovering step of recovering a microcapsule dispersion discharged through the conical member outlet, and an aqueous dispersion-supplying step of supplying the aqueous dispersion into the cylindrical member inlet, and a concentrated dispersion-recovering step of recovering a microcapsule dispersion discharged through the conical member outlet, and the cyclone further comprises a relaxation member connected to the conical member, defining a flow-in space into which the microcapsule dispersion discharged through the conical member outlet flows, and relaxing the strength with which the concentrated microcapsule dispersion is discharged, and the concentrated dispersion-recovering step comprises: a flow-in step in which the microcapsule dispersion flows out of the conical space into the flow-in space and, at the time of discharge through the conical member outlet, the microcapsule dispersion receives pressure that is higher than the atmospheric pressure outside the relaxation member, and a discharge step of discharging the microcapsule dispersion within the relaxation member out from the relaxation member. a flow-in step in which the microcapsule dispersion flows out of the conical space into the flow-in space and, at the time of discharge through the conical member outlet, the microcapsule dispersion receives pressure that is higher than the atmospheric pressure outside the relaxation member, and a discharge step of discharging the microcapsule dispersion within the relaxation member out from the relaxation member.