Forklift attachment with cargo fixing function

The invention discloses a forklift attachment with a cargo fixing function, and relates to the field of forklift attachments. Through the arrangement of the supporting cylinder, the stress plate, the baffle and the first spring, under the action of the stress plate, when a forklift is in butt joint with the accessory, the stress plate drives the baffle to move, so that the baffle is separated from the plug pin, meanwhile, due to the fact that the plug pin is installed in the supporting cylinder in a sliding mode, when the baffle is separated from the plug pin, the safety of the forklift is improved. When the accessory is in butt joint with a forklift truck, a bolt slides downwards under the action of a first spring, so that the bolt is smoothly inserted into an insertion hole, the accessory has the function of automatically inserting the bolt, manual operation during butt joint of the accessory and the forklift truck is effectively reduced, the accessory is more convenient to use, and meanwhile, under the act