NOVELTY - An opening portion (2a) of negative pole can (3) is fitted to the opening portion of positive electrode can (2). A separator is positioned to the sealing space which seals the positive electrode can and negative pole can through the gasket (4). The anode mix (5) containing nickel oxy-hydroxide is positioned to the positive electrode side, and cathode mix containing zinc powder or zinc-alloy powder is positioned in the negative electrode side. Then, the sealing space is filled with alkali electrolyte solution. Thus, the flat form alkali primary battery (1) is manufactured.    USE - Manufacture of alkali primary battery for electronic device such as wrist watch and portable electronic computer.    ADVANTAGE - The method is economical and efficiently provides alkali primary battery with excellent reduction inhibitory effect and discharge capacity.    DETAILED DESCRIPTION - An opening portion of negative pole can is fitted to the opening portion of positive electrode can. A separator is positioned to the sealing space which seals the positive electrode can and negative pole can through the gasket, and the separator is interposed into the gasket. The anode mix containing nickel oxy-hydroxide is positioned to the positive electrode side, and cathode mix containing zinc powder or zinc-alloy powder is positioned in the negative electrode side. Then, the sealing space is filled with alkali electrolyte solution. Thus, the flat form alkali primary battery is manufactured. The anode mix is obtained by mixing oxy-hydroxylated nickel powder as positive electrode active material, graphite powder as electroconductive agent, polyacrylic acid powder as binder and sodium hydroxide aqueous solution as electrolyte solution, and then adding granular form silver oxide as reduction inhibitor of nickel oxy-hydroxide with time difference.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the alkali primary battery.    Flat form alkali primary battery (1)    Positive electrode can (2)    Opening portion (2a)    Negative pole can (3)    Gasket (4)    Anode mix (5)