The invention belongs to the field of preparing electrodes for electrochemical engineering, and more specifically, relates to a coated titanium anode and a spraying pyrolysis preparation method thereof. The method includes following steps: (1), coating the surface of a titanium plate after being pretreated with an antioxidation layer; (2), controlling temperature of the titanium plate to 250-300 DEG C, and atomizing and spraying electrode preparation raw material slurry onto the surface of the antioxidation layer of the titanium plate; (3), sintering the titanium plate at high temperature to obtain the coated titanium anode. The coated titanium anode is prepared by combining spraying technology with step-by-step thermal treatment, so that the technical defect of short service life of electrodes caused by the fact that coatings are prone to dry-cracking when being baked at high temperature in a brush-coating method in the prior art is overcome ingeniously; quick and accurate preparationof the coated titanium anode is realized, preparation cost is low, and product quality is controllable. On the premise that performance is ensured, coating amount of precious metal is lowered greatly, cost of the coated titanium plate is lowered remarkably, and expansion and parity of applying the coated titanium anode are facilitated.