《宣和书谱》著录北宋徽宗时期御府所藏历代墨迹,是现存最早记录宫廷书法作品收藏的著作。该书不著撰人,元以前文献中无相关记载,其成书时间至今尚无定论。本文拟通过考察《宣和书谱·蔡京传》和《宣和书谱》所著录蔡京有关艮岳作品的写作时间以及王黼进呈唐代三诰的时间,进而推断《宣和书谱》的成书时间。 “Book of Xuan He” recorded in the Northern Song Dynasty Emperor Huizong period possession of ink, is the earliest record of the collection of the court calligraphy works. The book is not written, yuan no previous records in the literature, its book time is still inconclusive. This article intends to deduce the time of writing the Book of Xuanhe by examining the writing time of Cai Jing about the works of Gengyue and the time of Wang Mi into the Three Dynasties of Tang Dynasty, which are recorded by Xuan He Zhang Pu Cai Jing Chuan and Xuan He Shu Pu.