The invention provides an alkali battery sealing ring which is positioned among a battery bottom cover, a central column and a battery shell and is used for sealing an alkali battery, wherein the central column is positioned in the center of the sealing ring; anti-explosion valves are arranged on the sealing ring; the anti-explosion valves are thin trenches in the sealing ring in the direction of the central column; openings of the thin trenches are formed in the side, close to the battery bottom cover, of the sealing ring; the anti-explosion valves are uniformly or non-uniformly formed in the sealing ring; the thin trenches are linear, V-shaped, U-shaped or Y-shaped.