According to the routines that all frescos were based on manuscripts in ancient china, the great number of silk paintings in Dunhuang grottoes is the manuscripts for the frescos there.

• 依据中国古代画工作壁画必要画粉本样稿的惯例来看，敦煌藏经洞中发现的大批绢本画稿，当是用作壁画创作的底本。