In this paper, in addition to the ionic potential of the meaning, influencing factors, variation, polarizability and the relationship of extensive and in-depth discussion, also from problem solving perspective focuses on the effects of ionic potential on the properties of many materials???accurately grasp the connotation and extension of the concept, the ion potential and polarizability of the two important physical understanding  of the deepening of the construction of the thinking model, broaden the application field of vision, the great benefit of chemical learning.