A blade attaching method for a power generating apparatus of renewable energy type which comprises: a plurality of blades, a hub having a plurality of blade attaching parts, each blade being attached to one blade attaching part, and a plurality of bearings, each bearing supporting one blade attaching part rotatably, a generator to which a torque is inputted from a side of a rotor including the blades and the hub, a plurality of pitch drive mechanisms, each pitch drive mechanism being configured to adjust a pitch angle of one of the blades by rotating the corresponding blade attaching part, a temporary control panel comprising a plurality of control circuits (726, 727, 728) and a switching circuit, each control circuit being configured to control the pitch angle of one of the blades while the power generating apparatus of renewable energy type is stopped, the method comprising the steps of: holding one blade in such a manner that the blade attaching part of the hub corresponding to said blade faces a blade root part of said blade; selecting, using the switching circuit, a corresponding one of the plurality of the control circuits which corresponds to said blade; rotating the blade attaching part corresponding to said blade to a set angular position by controlling the pitch drive mechanism using the selected control circuit in such a state that the blade is held; and after rotating the blade attaching part to the set angular position, fixing the blade to the hub. a plurality of blades, a hub having a plurality of blade attaching parts, each blade being attached to one blade attaching part, and a plurality of bearings, each bearing supporting one blade attaching part rotatably, a generator to which a torque is inputted from a side of a rotor including the blades and the hub, a plurality of pitch drive mechanisms, each pitch drive mechanism being configured to adjust a pitch angle of one of the blades by rotating the corresponding blade attaching part, a temporary control panel comprising a plurality of control circuits (726, 727, 728) and a switching circuit, each control circuit being configured to control the pitch angle of one of the blades while the power generating apparatus of renewable energy type is stopped, the method comprising the steps of: holding one blade in such a manner that the blade attaching part of the hub corresponding to said blade faces a blade root part of said blade; selecting, using the switching circuit, a corresponding one of the plurality of the control circuits which corresponds to said blade; rotating the blade attaching part corresponding to said blade to a set angular position by controlling the pitch drive mechanism using the selected control circuit in such a state that the blade is held; and after rotating the blade attaching part to the set angular position, fixing the blade to the hub. holding one blade in such a manner that the blade attaching part of the hub corresponding to said blade faces a blade root part of said blade; selecting, using the switching circuit, a corresponding one of the plurality of the control circuits which corresponds to said blade; rotating the blade attaching part corresponding to said blade to a set angular position by controlling the pitch drive mechanism using the selected control circuit in such a state that the blade is held; and after rotating the blade attaching part to the set angular position, fixing the blade to the hub.