The invention discloses a sealing device for butt joint of automobile corrugated pipes. The sealing device comprises a first connecting pipe, a corrugated portion is fixedly arranged on the outer surface of one side of the first connecting pipe, a third connecting pipe is fixedly arranged on the outer surface of one side of the corrugated portion, the outer surface of one side of the third connecting pipe is fixedly provided with a fourth connecting pipe, the first connecting pipe, the corrugated portion, the third connecting pipe and the fourth connecting pipe communicate with one another, arubber ring is fixedly arranged at the position, close to the other side, of the outer surface of the upper end and the lower end of the first connecting pipe, a first baffle ring is connected at theposition between the rubber ring and the corrugated portion in a sleeving mode, and a second connecting pipe is welded on the outer surface of one side of the first baffle ring. According to the sealing device for butt joint of the automobile corrugated pipes, the practicability of the automobile corrugated pipes is enhanced, butt joint of the two automobile corrugated pipes is facilitated, the sealing performance of butt joint of the automobile corrugated pipes is enhanced, and the whole operation process is relatively simple.