12th International Meeting on Ferroelectricity (IMF-12) and 18th IEEE International Symposium on the Applications of Ferroelectrics (ISAF-18), which were sponsored by Xi’an Jiaotong University and supported by Shanghai Ceramic Society , were held in Xi’an from Aug. 23 to 26, 2009. There were over 600 specialists and experts coming from more than 30 different countries participating in those meetings. It was the first time that IMF and ISAF were held in China. They received 1118 abstracts, 121 invited reports and 6 research reports and 338 presentations were presented on those meetings. Their subjects were related to 14 topics, such as properties of nanometer materials, lead-free Piezoelectric ceramic and its application, granular ferroelectric materials, etc.