The invention discloses a designing method for DRC classification displaying in PCB designing. The designing method includes the following steps of obtaining layer information included by current design, adding the layer information into a DRC Layer menu in a pop-up window, obtaining a DRC type included in the current design, processing the DRC type, and then adding the processed DRC type into a DRC Type menu in the pop-up window; establishing an updating function, and updating a DRC Type menu list according to a user input action; obtaining all item attributes in the DRC Layer menu list and the DRC Type menu list, and inserting the item attributes into the updated DRC Layer menu list and the DRC Type menu list to form a characteristic parameter list; matching objects selected in the DRC lists with DRC in the current design in a coordinate and layer characteristic matching mode. DRC classification displaying including type classification and layer classification of the DRC is achieved, the two kinds of classification can be simultaneously conducted, single classification can also be conducted, working efficiency is greatly improved, unmodified bugs of the important DRC are avoided to a certain degree, and design quality is guaranteed.