China Marine Surveillance East China Sea Fleet () was a fleet of the China Marine Surveillance under the State Oceanic Administration. It was disbanded and merged into the China Coast Guard on July 2013 along with the China Marine Surveillance.

Organization 4th Marine Surveillance Flotilla (). Homeport: Ningbo, Zhejiang. 5th Marine Surveillance Flotilla (). Homeport: Pudong, Shanghai. 6th Marine Surveillance Flotilla (. Homeport: Xiamen, Fujian. East China Sea Aviation Detachment (). Based in Zhoushan, operator of Y-12.

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