Academic point of view: Due to the reform and opening up in the past 30 years, many capital constructions are developing simultaneously. At the same time of large-scale civil engineering, many relics and sites were destroyed, some were excavated and more were stolen. As far as archaeology is concerned, many sites have been excavated by scientific methods, which have revised many traditional concepts and views. For example, traditionally, the white porcelain unearthed from Fan Cui's tomb in the Northern Qi Dynasty (550-577) is the earliest porcelain in China. Through the excavation of a porcelain kiln site in gongyi city in recent two years, the white porcelain of the Northern Wei Dynasty (420-534) was discovered, which made the appearance of white porcelain a step forward. In addition, the underglaze color in the Three Kingdoms period (220-265) was discovered in Nanjing, which made the underglaze color appear from the Tang Dynasty (6 18-907) to the Three Kingdoms period. These are all revisions to the original viewpoints in the process of scientific exploration. Another example is Jun Kiln, one of the five famous kilns in Song Dynasty. With the discovery of scientific archaeology, some scholars and experts put forward different understandings and opinions. A simple Jun kiln in the Song Dynasty has been talked about in the Northern Song Dynasty. Jin said; Yuan dynasty theory; Said at the end of yuan dynasty and early Ming dynasty. In such a long process from the Northern Song Dynasty to the early Ming Dynasty, the arguments of various theories have different basis support. Although these findings enrich the academic atmosphere, we should also pay attention to a very important issue. When a theory appears, an idea and a "product" will appear in our market.

2. Identification methods: From the identification methods, there are scientific and technological detection and traditional visual identification methods. Personally, I think that with the development of science and technology, it is bound to embark on the road of scientific and technological detection, but we should also objectively see that ancient ceramics in China have been distributed in a vast area for thousands of years, with numerous kilns and various varieties. Moreover, in the process of firing porcelain in the same kiln, the results are different because of the different changes in temperature and kiln position. The porcelain clay used in different areas in the north and south is also different; The fuel used in the kiln is coal and wood, and the porcelain burned is different. This is a very big problem faced by science and technology testing, which needs the support of a very large database, rather than simply moving the data published in magazines for application. There is also a question about counterfeiting and imitation. The reason why I put counterfeiting and imitation in the third category is because counterfeiting has existed throughout the ages, and it was more prosperous during the Republic of China. There are two kinds of fraud, one is for profit, and the other is to show off one's national strength. For example, when Kang Yong was in office, he copied everything before, and everything he copied fell on his own tips. He is showing off his national strength and ability. Imitation porcelain shapes and patterns pursue the original style, but they are marked with the current style, which also shows a process of technological inheritance.