“密针线”是李渔在《闲情偶寄》中提出的关于戏曲创作的方法技巧之一,它不仅强调前后的照应,而且要求细节的真实。其中的道理也适用于其他叙事文学的创作。用李渔“密针线”的戏曲理论来铨衡小说《说唐全传》,梳理出存在于作品中的诸种疏漏,指出作者于“埋伏”、“照映”处还缺乏仔细的审订。 The “needle thread” is one of the methods and techniques proposed by Li Yu in “Xianqing Oujiu” about the creation of opera, which not only emphasizes the foreground and the back, but also requires the truth of the details. The truths also apply to the creation of other narrative literature. With Li Yu's “The Needle Thread” theory of opera to Quan Heng novel “Tang Biography”, sort out the omissions exist in the works, pointing out that the author in the “ambush”, The review.