Sealing device of automobile wire harness

The utility model provides a sealing device for an automobile wire harness, which comprises a sealing element, a sealing element and a sealing element, the plurality of through holes are formed in the sealing element, and the through holes are communicated with the cavity; the sound insulation structure is located on the sealing piece, the limiting structure is located on the periphery of the sealing piece and comprises a limiting groove, the limiting groove is formed in the periphery of the sealing piece, and the limiting groove comprises a plurality of connecting faces; the plurality of sealing rings are positioned on the connecting surface; and in the direction pointing to the ring centers of the sealing rings, the distances between the highest points of the sections of the multiple sealing rings and the connecting face are sequentially reduced. The sealing element can solve the problem that an existing sealing element is poor in water insulation effect and sound insulation effect. 本实用新型提供一种汽车线束的密封装置，其包括密封