敬献“德吉”是古代蒙古人普遍存在的一种习俗。青海蒙古人比较全面地继承了这一习俗。本文根据有关文献、田野调查,在阐明青海蒙古人敬献“德吉”习俗的构成、形式及具体举行过程的同时,从蒙古人的原始宗教信仰、文化心理结构入手,探究了这一习俗的渊源。有些学者认为敬献“德吉”习俗源于防毒。笔者认为,敬献“德吉”习俗不是源于防毒,而是与蒙古人原始信仰有着密切关系。原始时期的落后生产力水平所决定的统一命运的要求和平等获得天赐恩佑的宗教愿望共同生成了青海蒙古人敬献“德吉”习俗。 Devotion “Deji” is a common practice in ancient Mongolia. The Qinghai Mongolians inherited this custom more completely. Based on the relevant literature and field investigation, this article explores the origin, origin and practice of Mongolian’s primitive religious beliefs and cultural psychology while clarifying the composition, form and concrete process of Mongolian dedication of devoting “Deji” custom in Qinghai. . Some scholars believe that the de jure act of honor comes from antivirus. The author believes that the contribution of “Deji” custom is not derived from anti-virus, but with the Mongolian primitive faith has a close relationship. The requirements of the unified destiny determined by the level of backward productive forces in the original period and the religious wish of equal access to God-given grace jointly created the custom of offering de ji to the Mongolians in Qinghai.