The continuous electro tinning refers to a procedure which tin from stannate solution being deposited continuously onto the surface of pretreated steel strip to obtain tinning coating under the effect of electric field. The aim of this procedure is to coat a uniform tin layer onto the surface of cold rolling steel plate to resist the corrosions from outside circumstances. Tinning plate has a vast utilization, mainly focus on the industry of can contained food. Besides, tinning plate can be used as packaging materials in chemical industry, .