Plastic bag for meal box distribution and production method thereof

The invention belongs to the technical field of plastic packaging bags, and particularly relates to a plastic bag for meal box distribution and a production method thereof. The positions, close to the bottom of the bag body, of the side walls of the bag body are continuously folded and then welded through the hot pressing technology to form the folding parts, the strength of the side walls of the bottom of the bag body is improved under the combined action of the multiple folding parts, and then the side walls of the bottom of the bag body can keep a certain shape; the side wall of the bottom of the bag body plays a guiding role when the meal box is placed in, the center of the bottom of the meal box can be rapidly and accurately overlapped with the center of the bottom of the bag body through the folding part, the trouble that the meal box needs to be adjusted after being placed in is avoided, and the meal box in the bag body is prevented from inclining when the lifting part is lifted after the bag opening i