Legend has it that a Daur hunter was led to Wudalianchi Yaoquan Mountain by a sacred deer while hunting. He found that the injured sacred deer was miraculously healed after drinking the mineral water here. In this way, people told each other the story of the sacred water, so the Daur people and Mongolians would rush here from all directions on the fifth day of May every year to celebrate their discovery of the sacred water. People lit bonfires at night, dancing and singing, and at midnight, everyone scrambled to drink the sacred water. Before returning home, each of these people moved a stone and hung a red cloth strip on it for good luck, and agreed to meet again next year. Later, people built Zhongling Temple on Yaoquan Mountain and Heilong Temple next to the pool. From then on, there was a custom of "Yaoquan Meeting" at the foot of Yaoquan Mountain on the Dragon Boat Festival in May. There is a "Water Splashing Festival" in the south, and there is a "Holy Water Festival" in Wudalianchi. The Holy Water Festival is a mass cultural space that integrates multicultural and multi-ethnic customs. However, in recent years, under the impact of modern tourism, the Wudalianchi Holy Water Festival that people know now has deviated from its original cultural connotation. Therefore, it is urgent to restore the historical original appearance of the Wudalianchi Holy Water Festival and preserve the multi-ethnic and multi-cultural characteristics of the festival. The Wudalianchi Medicine Spring Festival (Holy Water Festival) is held on the fourth, fifth and sixth days of the fifth lunar month (old calendar) every year. It has a foundation of belief and folk customs inheritance for more than 200 years. It is a vivid portrayal of the specific historical era of many ethnic groups in Heilongjiang Province, such as Daur, Oroqen, Mongolian, and Han. It was triggered by primitive beliefs. In the long process of historical development, it has continuously penetrated and reflected the multi-ethnic production and life, social activities, folk literature and art, and other multi-cultural connotations. During the celebration, the local ethnic groups held various traditional ceremonies, folk performances, traditional songs and dances, various competitive activities, holy water sacrifices, grabbing midnight water, smearing blessings, spring lake lantern festivals, hunting and drinking water, and other colorful activities. This activity involves a wide range of people and has a large number of participants. From the original thousands of people, it has now developed to more than 100,000 people participating in folk activities. It is one of the top 100 folk activities in China. Wudalianchi Medicine Spring Festival (Holy Water Festival) continues the fine tradition of harmonious coexistence of various ethnic groups in the border areas of Heilongjiang and celebrating the Dragon Boat Festival. It has important ethnology, folklore and sociology values. It is also of great significance to enhance national unity and maintain the stability of the border areas of the motherland.