Processing device for low-temperature vacuum tumbling and pickling fish products

The invention relates to the technical field of fish processing, and discloses a low-temperature vacuum rolling, kneading and pickling fish product processing device which comprises a processing tank body, a tank cover is installed on one side of the processing tank body in a matched mode, limiting arc blocks are fixedly installed on the outer wall of the processing tank body at equal intervals, and supporting legs are fixedly connected to the bottoms of the two sides of each limiting arc block. When fish products need to be pickled and processed, a tank cover is opened, the fish products are fed into a tank cavity in a processing tank to wait for processing, at the moment, a user uses an external controller and a vacuum pump, the vacuum pump is connected with a vacuum pipe opening through a vacuum pipe, and then the controller is started; and the controller drives the vacuum pump to operate, air in the tank cavity is pumped out, the tank cavity is in a vacuum state, negative pressure is formed in the tank ca