This paper is aimed to give a general review on the current status and progress of ion imprinting technology and its application in metal ion pollution and recycling use at home and abroad. Different processes of preparation of ion imprinting polymers, for example, bulk polymerization, in-situ polymerization, precipitation polymerization, surface molecular imprinting technique, membrane technology, micro-emulsion polymerization and ATRP (atom transfer radical polymerization) , with their performance compared, analyzed and generalized. In this...