The invention provides a wind generation set single blade clamping fault oar lay-in method. The method comprises the following steps that 1, whether a single blade clamping fault occurs on a wind generation set or not is judged; 2, when it is judged that the single blade clamping fault occurs on the wind generation set, the yam bearing load is calculated in advance according to the preset constantvariable-pitch speed; and 3, when the yam bearing load calculated in advance is smaller than the preset load threshold value 1, the preset constant variable-pitch speed is adopted for achieving the oar lay-in action of the wind generation set; and when the yam bearing load calculated in advance reaches the preset load threshold value 1, the non-constant variable-pitch speed is adopted for achieving the oar lay-in action of the wind generation set, wherein the non-constant variable-pitch speed is inversely related to the real-time yam bearing load. When the single blade clamping fault occurs on the wind generation set, and the oar lay-in method is adopted for achieving the oar lay-in action, the yam bearing load of the wind generation set is small, and a yam system is low in cost and highin operability.