The invention patent provides an intelligent planning method for a three-coordinate detection point of a complex curved surface component. Existing detection experiences are summarized, various typesof detection point planning methods are established, and the methods comprise a method of planning a detection point along a curved surface edge, a method of planning a detection point along a curvedsurface center line, a step of uniformly planning a detection point in a curved surface. The shape of the curved surface to be detected is divided into an annular surface, a round surface, a complex contour surface and a rectangular surface. A matrix algorithm is designed, by identifying the information of type and area of the curved surface, the detection point planning method and the curved surface are intelligently combined, an appropriate detection point planning method is selected for each curved surface, the layout parameters of a detection point are adaptively adjusted, and the detection point is automatically planned at the corresponding position. Compared with the prior art, the detection point planning is changed to the compliance with the standard or the specification from the compliance with an experience traditionally, a manual mode is changed to an automatic mode, the standardization and rationality of the detection point planning are improved, and the automation and intelligence of detection point planning are realized.