Emperor Qianlong's love for seals can be said to have reached the extreme, and the number of his seals is amazing. According to statistics, the Qianlong Emperor had more than 1,000 square seals, of which 500 were commonly used. The contents of these seals are not varied, and many are engraved repeatedly. For example, there are 42 squares of "Ancient Rare Son of Heaven" and "Treasure of Ancient Rare Son of Heaven", 24 squares of "Jurizi", 63 squares of "Eight Thoughts of the Elderly" and "Treasure of Eight Elder Thoughts", 45 squares of "Self-improvement", and 13 parties of "Ten Perfect Old Men" and "Ten Perfect Old People's Treasures".
Emperor Qianlong was not only keen on collecting and using seals, he also liked to stamp his favorite Song and Yuan editions of books with his own book collection seals. He once printed the books stamped with the seal of "Qianlong Five Seals" hidden in the "Tianlu Linlang" at that time into a bibliography, plus the later "Tianlu Linlang Continuation", there are about 300 kinds, a total of thousands of volumes. In addition, Emperor Qianlong also had some books hidden in the Qianqing Palace, Yangxin Palace, Shouning Palace, Imperial Study and other places, and the Qianlong Emperor always added his book collection seal to the books in these places.
In general, Emperor Qianlong's love for seals went beyond mere use, he regarded seals as carriers of art and culture, and expressed his love and respect for art and culture through his collection and use. This unique hobby has left a deep mark on his history. Emperor Qianlong's love for seals is not only a personal interest, but also a manifestation of the inheritance and development of traditional culture. Through the use and collection of seals, he pushed the art of seals to a new level, leaving a valuable cultural heritage for future generations.