Abstract: The present invention discloses an isolation type tunnel washer for cleaning clothes, which comprises a closed tunnel washer box body. A partition wall is provided in the middle of the tunnel washer box body, a feeding port and a discharging port are provided at two ends of the tunnel washer box body, and the feeding port and the discharging port are respectively located at two sides of the partition wall. A water vapor separation structure is mounted between the feeding port and the partition wall, the water vapor separation structure extracts and exhausts air from the interior of the tunnel washer box body, and a first door body and a second door body which can be opened and closed are respectively mounted at the feeding port and the discharging port.