本文由探索范家相《詩瀋》一書的《詩》學立場出發，研究范氏原先尊朱且尊毛的立場，發現其中實存有對朱子《詩》學的嚴重誤解；而其尊毛立場，亦貫徹在其後《三家詩拾遺》一書。其所以輯佚三家的動機，竟是為求三家與毛同處於一完整狀態，以便二者公平競爭，並突顯《毛詩》優於三家。 王應麟承繼朱子遺志，輯佚三家舊文，使三家《詩》與《毛詩》相抗衡，避免《毛詩》獨尊；應麟為抗毛而輯三家，正與范氏為尊毛而輯三家的動機，形成強烈對比。王、范二人動機南轅北轍，但卻殊途同歸，均對百廢待興的三家《詩》輯佚貢獻卓著。尤其是范家相，在全書之結構與〈三家《詩》源流〉的體例設計上，乃至輯佚方法的運用、拓展等方面，在在都扮演著承先啟後的重要角色。

This paper starts by using the Shi shen 詩瀋 by Fan Jiaxiang 范家相 to show that while Fan’s understanding of The Book of Songs 詩經 emphasized the interpretations of the Mao School 毛詩 and Zhu Xi 朱熹 equally, that balance was predicated on a serious misunderstanding of Zhu. Fan’s respect for the Mao School pervades his later work Sanjiashi shiyi 三家詩拾遺, and his motive for trying to restore the Three Schools 三家詩 was, in fact, to save them from obscurity so they could compete with the Mao School on equal footing and thereby accentuate the superiority of the Mao School. Wang Yinglin 王應麟 undertook Zhu’s unfulfilled wish to compile the lost writings of the Three Schools for a different reason, namely to provide a counterpoint to the Mao School and prevent it from monopolizing the interpretation of The Book of Songs. Despite their different motives, the two scholars both succeeded in making significant contributions to restoring the long-lost commentaries of the Three Schools. In particular, the organization of Fan’s book, the layout of one of its chapters (三家《詩》源流 The Origin of the Three Schools), and his application and adaptation of methods for restoring lost works deeply influenced later compilers and played an important role in the history of the compilation of the Three Schools.