"Yan Di Mausoleum Festival" is divided into official sacrifice and folk sacrifice. Folk sacrifices began in summer, official sacrifices originated in Zhou, and imperial sacrifices began in Tang and flourished in Song. Official sacrificial activities have evolved to this day, mainly including public sacrificial ceremonies and memorial ceremonies. Folk sacrifices, commonly known as "the tomb of the Emperor Chao", are often held in various forms to offer sacrifices to Emperor Yan, in order to achieve good weather and abundant crops. Since the reform and opening up, with the increasing popularity and influence of Yandi Mausoleum at home and abroad, Yan Di Mausoleum Festival has become an important carrier to inherit Chinese culture and unite national feelings. On May 20th, 2006, Yandi Mausoleum Festival was approved by the State Council to be included in the first batch of national intangible cultural heritage list.