Provided is a communicating tube seal assembly, comprising a communicating tube (42) and a sealing member (43). The communicating tube (42) at least comprises a first channel (4210), a second channel (4220) and a third channel (4230). When the sealing member (43) is in an open state, the first channel (4210) is in communication with the second channel (4220) and the third channel (4230). When in a sealing state, the sealing member (43) is attached to the communicating tube (42) so as to disconnect the first channel (4210) from the second channel (4220) and disconnect the first channel (4210) from the third channel (4230). The communicating tube seal assembly, in which multiple channels of the communicating tube (42) are sealed simultaneously by means of the sealing member (43), has a simple structure.
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