遼與宋訂立澶淵盟約之後，兩國經常派遣使節進行交聘的活動，當時遼為了在外交的互動上，能在文學方面與宋較勁，因此常以文臣擔任副使。本文即是以遼代十六位狀元和文臣王師儒參與遼宋外交的情形為例，論述遼宋外交關係上此一方面的史實。

Both two parties usually dispatch envoys to do activities after the agreement of Shan-Yuan of alliance signed with Liao country 2 For the purpose of competing with Sung in literature, Liao usually send civil servants as vice deputy in the mutual activities。 This text discussed about such historical truth with regard to sixteen top candidates and the civil servant Wang Shih-Ru participated in diplomacy relation between Liao and Sung.