Abstract: The Paleo-wildfire event was a common phenomenon during the Cretaceous, it is significant to research these Palaeo-wildfire events for understanding the palaeoclimate and palaeogeography. But there are little report in China.We firstly found three charcoal-bearing layers in the early Cretaceous strata on the Wulan section in the east of Yingen-Ejinaqi basin, Inner Mongolia. There are obvious burning feature and undestroyed structure of wood cells in the charcoal. Meanwhile, the measurement of the PAHs shows the occurance of the Phe, Fla, Pyr, Chr, BaAn, Bep, etc., which employed the combustion sources in the samples. These demonstrate that the charcoal was the remains of the wildfire, which the combustion temperature would be higher than 520℃. In conjunction with the analysis of palynologic data and sedimentary environment as well as measurement of the magnetic susceptibility, we propose these charcoal-bearing layers on the Wulan section probably indicate three stages of wildfire in early Cretaceous. The wildfire might happened in adjacent region with the flourishing tall arbors, including Coniferae and Taxodiaceae. Considering these finds and the wildfire in the Huolinhe coal by other researchers may suggest that the north of China had happened frequent wildfire events during the early Cretaceous, and it was the part of the wildfire belt in the mid-latitude area of northern hemisphere during the Cretaceous.