The invention provides a routing edge sealing mechanism comprising a rotating shaft, two rolling wheels, a rolling wheel support, a motor, a sensor assembly and an exhaust pipe set. The rotating shaft is connected with the motor through a transmission assembly. The two rolling wheels are oppositely installed on the two sides of the lower end of the rotating shaft. The rolling wheels are connected with the lower end of the rotating shaft through the rolling wheel support. Exhaust through holes are formed in one side of the shaft wall of the rotating shaft and communicate with the exhaust pipe set. The exhaust pipe set is arranged between the two rolling wheels. Besides, the rolling wheels, the rolling wheel support and the exhaust pipe set are all in synchronous rotation with the rotating shaft. The sensor assembly is installed on a fixed outer cover. The routing edge sealing mechanism can achieve straight edge sealing and curved edge sealing functions in multiple directions and is simple in structure and good in interchangeability, the manufacturing cost is greatly lowered and production efficiency is improved.