Thermoluminescence is an absolute dating method, which is mainly realized by sampling to detect the time and the energy absorption and release of feldspar crystals. The sintering temperature of low-temperature ceramics is low, and the contained chronotropic and feldspar crystals are well preserved. Thermoluminescence sampling can obtain enough chronotropic and feldspar crystals, so the detectability is high. Porcelain fired above 1300℃ is different. The timely crystal has been destroyed by high temperature melting, and the samples will lack timely crystal, so it is impossible to detect or accurately detect the production age of ancient ceramics.

However, although thermoluminescence method has its advantages, it also has its limitations. For example, thermoluminescence method can only detect porcelain with firing temperature above 1300℃, but not low-temperature ceramics. In addition, in order to obtain higher profits, some antique dealers may take some measures to forge porcelain, such as adding too much radioactive substances, which challenges the accuracy of thermoluminescence method.

Therefore, in the identification of porcelain, we should not only rely on thermoluminescence method, but also combine other identification methods and means, such as archaeology, history and chemical analysis, in order to obtain more comprehensive and accurate information.