The invention relates to a method to inspect the quality of a blade, especially of a wind-turbine-blade. At least parts of the blade are inspected by a computer-tomography-method using radiation. The radiation is directed through the blade for the inspection. A transmitter sends the radiation through the blade. A receiver receives the sent radiation after its passing through the blade. The position of the transmitter, of the receiver and/or of the blade is changed in relation to each other, to perform the inspection of the blade. FIG 2
