The invention discloses a circular tubular titanium black membrane electrode with electrochemical oxidation activity and a preparation method of the circular tubular titanium black membrane electrode. The circular tubular titanium black membrane electrode is of a circular tubular structure of which the wall thickness is 2-8 mm, the porosity is 50-85%, the specific surface area is 3-7 m<2>/g, the specific surface area with electric activity accounts for 2-8% of the total specific surface area of the electrode, the ratio of the internal specific surface area to the external electric activity specific surface area is 0.2-0.6, and the thickness of an electric activity layer is 100-700 [mu]m; the electrode comprises a main component of TinO(2n-1) and secondary components of doped metallic elements, wherein n is an integer which is greater than 3 and is less than 10; the mass ratio of TinO(2n-1) to the doped metallic elements is (100:1)-(500:1). The membrane electrode has the advantages of being high in porosity, large in electric activity specific surface area, high in electrochemical oxidation activity, stable in chemical property and the like, and can be prepared by using a simple and feasible process. The electrode material can be used as an anode, membrane separation and electrochemical oxidation process compounding are achieved, and the problem that the treatment efficiency is not high because of mass transfer restriction in electrochemical oxidation processes is solved.