After firing pottery, it has been widely used and widely used, which has promoted the rapid development of pottery-making technology. From the earliest use of sand-bearing pottery clay to rinsing pottery clay, there are two categories: sand-bearing pottery and mud-making pottery. With the improvement of blank-making level, from kneading, clay tray masonry to slow wheel molding to fast wheel drawing pottery, the color of pottery has also changed from single to multi-color, and the surface decoration technology of pottery has become more and more refined. After about 10,000 years of development, by the Longshan period (4600-4000 years ago), China's pottery-making technology had been significantly improved, or reached the highest level in the history of ancient pottery-making, because after entering the metal age, it no longer paid attention to the production of pottery. The pottery-making technology in Longshan period was the most developed, especially in Shandong, and the most typical one was the eggshell black pottery high-handle cup, which was famous at home and abroad.