The invention discloses a roller washing machine and a door seal assembly thereof. The door seal assembly includes a first door seal ring, a second door seal ring and a connection pipe; the first door seal ring is connected to an outer drum of the roller washing machine; the first door seal ring is provided with a water outlet communicating the outer drum; the second door seal ring and the first door seal ring are connected coaxially, the outer diameter of the second door seal ring is less than the outer diameter of the first door seal ring, and a water discharge hole is formed in the lower part of an inner periphery surface of the second door seal ring; and the connection pipe is connected to the first door seal ring and the second door seal ring and communicates with the water discharge hole and the water outlet. According to the door seal assembly, water in the door seal assembly can be timely discharged through the water discharge hole, and the water is discharged into the outer drum through the connection pipe, and then the door seal rings can be protected to some extent; and odors can be avoided, and the service life of the door seal assembly can be prolonged.