Thermal Activation Characteristic (TAC) tests were performed on sixty porcelain samples from six sites of the Cixi Shanglin Lake area,including Goujingshan,Dilingtou,Kaidaoshan,Wapianya,Dalukou and Silongkou,all dated to the Tang Dynasty,Five Dynasties and Northern Song Dynasty.The result shows that the TL sensitivity of Yue Kiln porcelains is outstandingly high and their TAC and activation temperature remain consistent.The highest thermal activation temperature is 700℃；the lowest is 640℃ and the average value is 658℃. When measuring the paleo dose and age of Yue Kiln porcelains from the Cixi Shanglin Lake Area using the Pre dose Technique,accurate and reliable dating information can be obtained by adopting the correct activation temperature.