The invention belongs to the technical field of electrochemistry industry titanium electrode preparing, and relates to a preparing method for a titanium-based coating titanium anode. The preparing method specifically comprises the following steps including titanium base body pretreatment, namely oil removal and degreasing, activating treatment, laser etching, titanium scrap removal, acid treatment, ultrasonic cleaning, drying, coating sintering and finished product obtaining. According to the preparing method, roughening treatment is conducted on the surface of a titanium base body through a laser etching method, the method is simple in usage and free of pollution, oxide skin generated by the titanium base body can be rapidly treated, and long-time treatment through an acid solution is notneeded any more; any regular roughening arrangement can be obtained, grid gaps are easily fully filled with coatings, a uniform and dense structure is obtained, meanwhile, the large-current work intensity can be borne, and corrosion resistance is high.