The distance standard of perfect score is still 100 meters, and the time standard is 3 minutes and 30 seconds for boys and 4 minutes for girls. During the test, hold the pool wall and start from the starting point (no diving). Breaststroke is required for the first 25 meters, and swimming style is not restricted for the last 75 meters. Candidates can use any turning action, but they must touch the wall of the pool to turn around, and the end point is when the end point touches the wall of the pool. During the swimming test, candidates are not allowed to hold supports such as waterway lines with their hands, touch the ground with their feet or use nasal plugs. Test scores are calculated according to the lower limit of candidates' scores, and candidates who have not completed 25 meters cannot score.