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The application discloses a food packaging bag raw material conveying structure and relates to the field of food packaging bags, which comprises a conveying cavity, one end of the conveying cavity is provided with an inspection plate, one end of the inspection plate is provided with an output device, the output end of the output device is in transmission connection with one end of an auger, the auger is rotationally connected to one end of the inspection plate, the top end of the conveying cavity is provided with an inlet, and a screening structure is arranged in the inlet. In the application, the plastic particles required to be transmitted to the food packaging bag production equipment can be screened according to requirements, and the plastic particles that do not meet the standards can be treated until the size meets the standards. In this way, the utilization rate of raw materials is improved, the cost increase caused by material waste is reduced, and the uniform particles are easier to control parameters in processing, so that the production process is more stable.