唐朝滅亡後，其晚期官制漸漸出現了分流的態勢：一、透過中原五代各朝的官制，一直延續到北宋的「元豐官制」；二、透過北方遼朝的官制，一直延續到金朝的「天眷官制」。為了能從一個縱向的角度，考察由唐朝至金朝官制發展的延續性；同時從一個橫向的角度，考察遼朝官制與唐末五代、北宋官制的相互關係。本文意圖通過對遼朝官員檢校銜的探討，宏觀地考察它的淵源及嬗變，以及其與文散官階、兼銜、試銜及勳的關係，藉以證明就中國官制的發展軌跡而言，遼朝官制確實發揮了承先啟後的作用。

The bureaucratic system of medieval China after the fall of the Tang dynasty had been divided into two parts: the “Yuanfeng bureaucratic system” 元豐官制 of the Northern Song dynasty, which survived through the Five Dynasties period, and the “Tianjuan bureaucratic system,” lasting through the Liao dynasty into the Jin dynasty. In order to observe the continuity of the bureaucratic system from the Tang dynasty to the Jin dynasty from a vertical perspective as well as analyzing from a horizontal perspective the interactions of bureaucratic systems between the Liao, the late Tang and the Five Dynasties period, and the Northern Song dynasty, the matter of the jianjiao title 檢校銜 of the Liao dynasty—as well as its relationship to other titles of the time—will be fully discussed to prove that the Liao functioned as a bridge for the bureaucratic systems of the Tang and Jin dynasties.