《永樂大典》是明代編纂的一部大型類書。全書共計二萬二千八百七十七卷,另有凡例、目錄六十卷,共裝成一萬一千零九十五册,約三億七千餘萬字。它保存了明代以前我國的文學、歷史、地理、哲學、宗教與科學技術等方面的豐富資料,是我國古代文化遺產中的珍品。 “Yongle Grand Ceremony” is a large class book compiled in the Ming Dynasty. The book total twenty-two thousand seven hundred and seventy-seven volumes, and another example, the directory sixty volumes, a total of 11,095 volumes, about more than 370 million words. It preserved the rich materials of literature, history, geography, philosophy, religion and science and technology before the Ming Dynasty in our country. It is a treasure in ancient Chinese cultural heritage.