The invention discloses a camouflage plaque splitting and spraying method. The method comprises the steps of a spraying path is split, a screened path is split, the path which exceeds the L value length is split into at least two continuous short paths with the length value smaller than the L value, and a transition path is added to each split short path, wherein the length value of each transition path is M; the path is replanned, the split short paths are used as new paths and combined with unsplit paths to form a whole new to-be-sprayed path for workpieces, and the spraying sequence of thenew to-be-sprayed path is replanned; and the path likely to cause clamping in the robot spraying process is split into short paths, the split short paths are smaller than the robot spraying limit range, and the effect of preventing robot clamping caused by the long path is achieved.