The Ullambana festival is the Buddhist Festival from Buddhist Scripture of Ullambana. At the ancient times of China,the ghost Festival in July fifteen have produced,and consecrated the new harvest to ancestors in that day.The Zhongyuan Festival of Taoism have formed in the Sui and Tang dynasties. With the competing of Buddhism and Confucianism and Taoism in the history,the Ullambana festival compromised gradually with the ghost festival and the Zhongyuan Festival.The formation of the three sections on the same day is the unique cultural phenomenon of China.