Abstract: The zinc electrode process is affected by the structure of the electrolytic tank, and production factors such as the difference in ionic concentration at different locations in the same tank and the difference in tank temperature can easily cause the zinc electrode rate to vary, resulting in the cathode precipitating zinc of different thicknesses. After the modification of the tank structure, in the process of production practice, it is very good to improve the phenomena of different zinc electrode rate in the tank, and the optimisation of production economic indexes is obvious.