On July 2 - 5, 2019, the 3rd International Stratigraphic Congress was held in Milan, Italy. The theme of this meeting focuses on the progress of stratigraphic research from the Precambrian to the Holocene. More than 500 experts and scholars from all over the world participated in this grand event. A total of 10 people from the NIGPAS attended this meeting and gave oral reports respectively to introduce the latest scientific research progress in their respective research fields.