The invention provides a method for producing heat dissipation plates, which mainly comprises the following steps: 1) drawing an electronic Gerber file, and programming according to the Gerber file; 2) making a film according to the drawn Gerber file; 3) inputting the program made in step 1) into a machining centre device and a wire cutting machine, and carrying out digital control drilling and shape milling on the heat dissipation plate to be processed, then carrying out wire cut rectangular window machining; wherein in the process of digital control drilling, positioning holes and wire-feeding technology holes for positioning in the process of wire-cutting are produced; 4) carrying out countersunk treatment and plate erasing treatment on the heat dissipation plate subjected to digital control processing; and 5) carrying out surface treatment on the heat dissipation plate subjected to plate erasing treatment. The method provided by the invention is easy to realize, solves the problem of deformation occurred in the process of mechanical milling, and can be realized aiming at the plates with different design difficulties.