An individual pitch control method for large wind generating set, including a collective pitch control process and a differential pitch control process. The collective pitch control process involves obtaining the desired output collective pitch angle of the collective pitch control by PI control. The differential pitch control process involves obtaining a tilting load component and a yaw load component by Park conversion of the detection-obtained load values of three blade root parts, and then obtaining the desired output differential pitch angle of the differential pitch control by PI controller control and Park inverse conversion successively. The desired output pitch angle of the individual pitch control can be obtained by the summing of the differential pitch angle and the collective pitch angle, and then the pitch regulation is realized by controlling the action of the servo motor. The method can effectively avoid large fatigue load of the large wind generating set.
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