1. Characteristics of manufacturing technology, shape, color and glaze.
2. Study on characters, symbols or patterns.
3. Archaeologists conduct on-site exploration and investigation, determine the types of relics, stratigraphic characteristics and types of relics, and then infer their ages.
4. According to the pottery, stone tools, bones and other cultural relics unearthed in Makou Kiln, their ages are inferred and verified by carbon 14 dating and other scientific and technological means.
5. Based on the geological investigation, atmospheric change and biological evolution of the surrounding environment of Makouyao site, the evolution and age of Makouyao are speculated.