Beijiao 57-class dispatch boat

Beijiao 57 class dispatch boat is a class of little known naval auxiliary ship currently in service with the People's Liberation Army Navy (PLAN). The name of this class is after the first unit commissioned, with the exact type still remains unknown, and a total of eleven units of this class have been confirmed in active service as of mid-2010s, making this class the most numerous dispatch boats in service with the Chinese navy (as of mid-2010s).

Beijiao 57 class series ships in PLAN service are designated by a combination of two Chinese characters followed by three-digit number. The second Chinese character is Jiao (交), short for Jiao-Tong-Ting (交通艇), meaning dispatch boat (ferry) in Chinese, because these ships are classified as dispatch boats. The first Chinese character denotes which fleet the ship is service with, with East (Dong, 东) for East Sea Fleet, North (Bei, 北) for North Sea Fleet, and South (Nan, 南) for South Sea Fleet. However, the pennant numbers may have changed due to the change of Chinese naval ships naming convention.