The application process and barrier properties of organic coating materials such as PVDC, modified PVA and epoxy-amine and inorganic coating materials such as silicon oxide and diamond-like carbon in PET bottles were reviewed with the research progress of high-barrier PET bottles introduced in domestic and overseas market. It was pointed out that currently the high-barrier PET bottles were still in the trial stage based on small scale. The high transparency, recyclability, simple operation in technology and practicality should be ensured in addition to improving the barrier properties of PET materials in order to successfully achieve the transformation from glass bottles to PET plastic bottles.