The invention relates to the technical field of building structures, in particular to a shore-based feed scattering device with a flow adjusting mechanism for aquaculture. The device comprises a device main body, a controller, a storage battery and a driving motor, wherein the device main body comprises a floating plate, a feed collecting box, a feed inlet, an observation plate, scale marks, the controller and the storage battery; a feeding mechanism is arranged in the device main body, a protection mechanism is arranged in the device main body, the device main body is provided with a moving mechanism, and the device main body is provided with an adjusting mechanism. According to the feed scattering device disclosed by the invention, manual feed scattering is avoided, the workload of feeding personnel is reduced, the feed scattering speed is increased, operation is easy, and use is convenient; in addition, the feed can be prevented from being agglomerated into blocks in a feed storagecavity through an arranged stirring rod, the feed scattering range is widened, and the phenomenon that fish shoals snatch food due to non-uniform material scattering caused by a small material scattering range is avoided.