Abstract: The paper considers that the reticulated anode system, flexible anode system, and magnesium anode can be used to protect the tank's bottom plate. The economic comparison shows that it is more reasonable and economic to adopt the reticulated anode system at the tank's bottom plate without any preventive coating outside it. It introduces the performance of the reticulated anode in CP system, design, and installation, provides the protective potential. The authors consider the reticulated anode to be an unparalleled advantage beyond any protective system, which is a new method to protect the tank's bottom plate in CP system.