The invention discloses a novel material transportation bag, a material loading device and a material loading method. The novel material transportation bag comprises an upper bag body, an inflation bag body, an inflation and deflation
pipe, an
exhaust pipe, a discharging
pipe, first electromagnets arranged at the four corners of the upper bag body and a second
electromagnet arranged in the middle of the upper surface of the upper bag body, a feeding
pipe is arranged in the middle of the second
electromagnet, and the feeding pipe and the discharging pipe are each provided with a first valve. The inflation and deflation pipe and the
exhaust pipe are each provided with a second valve, and the controller is in control connection with the first valve, the second valves, the first
electromagnet and the second electromagnet. The device has the beneficial effects that a material bag is ejected through the ejection block, the upper bag body and materials form a whole
solid matched with a compartment in a vacuumizing mode, after the ejection block is withdrawn, the material bag cannot be bulged out of the compartment, and a vehicle door can be easily closed; when the van brakes or turns, the driving stability of the van is greatly enhanced, and the same van can contain more materials.