The invention relates to a
laser anti-counterfeit marking method for a product with a complex profile. An anti-counterfeit mark pattern is designed in a specific anti-counterfeit zone, a vector pattern of an anti-counterfeit mark is split and a process reference point is selected by a specific splitting
algorithm, short segments are scanned and machined according to specific process parameters, and finally the anti-counterfeit mark pattern can be marked on the surface of the product with the complex profile. Since position information, splitting information and
machining process parameter information are carried in the anti-counterfeit mark pattern, counterfeiters need to obtain the accurate curved surface model of the complete profile, the accurate contour and position of the anti-counterfeit marking zone, the specific
algorithm for splitting of the vector pattern of the anti-counterfeit mark, the specific
algorithm for selection of the process reference point,
laser process parameters of the short segments and the like for counterfeiting in addition to a
laser machining device, all the information is key to counterfeiting, and thus technical difficulties in counterfeiting are improved. Therefore, the laser anti-counterfeit marking method has good anti-counterfeiting effects.