Introduction to the Porcelain Workshop: In recent years, ancient porcelain kiln ruins and iron smelting ruins have been discovered in the Yuhua Palace ruins. From the analysis of a large number of artifacts collected and unearthed, the ancient porcelain kiln sites date from the Tang and Song Dynasties to the Jin and Yuan Dynasties. This discovery expanded the area where the celadon system was fired in the north, greatly enriched the content of the Yaozhou kiln system of the Song Dynasty, and was very important to the study of our country. The history of ceramics, especially the development history, firing technology and decorative arts of Song Yaozhou porcelain kilns, has provided new information. The discovery of iron smelting sites is proof that iron ore existed in the Yuhua Palace area for a long time.