The invention relates to a method for capturing a blade angle of a rotor blade of a rotor of a wind turbine, comprising the steps disposing and aligning a contactless measuring device in front of the wind turbine, aligning the wind turbine in its azimuth position in relation to the measuring device, rotating the rotor of the wind turbine, sampling and capturing the profile of the rotor blade, or a part thereof, at a predefined height, by means of the contactless measuring device, and determining the blade angle of the rotor blade from the data recorded during the sampling of the profile.