Abstract: The bachelor of Ji Xian had briefly participated in writing official documents. Its specific activities include the following points: First of all, there are many collection sites, but the place where official documents are written may not be certain. Sometimes the bachelor wrote the official documents patent in the Jixian courtyard, sometimes he followed the emperor. Secondly, its duration is ambiguous. In general, due to the actual needs, it participated in the writing of official documents. Later because of the appearance of the Hanlin, it was hardly involved in writing official papers anymore. In fact, the earliest instance appeared in the 20th year of Kaiyuan(732), and the theoretical time limit can be till the existence of the Hanlin. In reason, It can survive until Hanlin was established. Third, the written content of official documents is relatively limited. Based on the above system and analysis of its characteristics, this paper presents the following two points. On the one hand, there is a sense of alienation between the bachelor and the activity of writing. On the other hand, bachelors are related to other official positions, and this confusion of official functions led to the instability of the state. In a way, this has created a new situation.