Flexible underwater oil storage bag device

A flexible underwater oil storage bag device comprises a transversely-extending rectangular outer frame, an anchoring mechanism used for fixing the outer frame to the water bottom is arranged at the bottom of the outer frame, a transversely-extending long-strip-shaped rubber bag body is arranged in the outer frame, the upper portion of the rubber bag body is fixedly connected with the outer frame, and the lower portion of the rubber bag body is suspended. A main oil conveying opening is formed in the middle of the top of the rubber capsule body and connected with an oil conveying pipeline, and the oil conveying pipeline is connected with a floating body used for pulling the oil conveying pipeline through an anchor chain. The utility model has the benefits that the production cost is low, the installation is easy, the service life of the device can be prolonged by replacing the corrosion-resistant inner tube body, the use and the operation are simple, and the oil inlet efficiency and the oil outlet efficiency