The harvest period of sweet corn green sticks is during the milk ripening period, and the best taste period is the appropriate harvest period. 1. Process flow: fresh corn cobs → peeling and removing silk → cleaning → pre-cooking → cooling → cooling → wiping → bagging → vacuum sealing → autoclaving → constant temperature cultivation → inspection → packing → packing → storage 2, operating points: 1 shelling, wire removal, cleaning. Operators should pay attention to personal and operating site hygiene. During the operation, the sweet corn leaves, filaments, and pedicel stems were first removed, and then the mildew, pests, damage, malformed grains, excessive tenderness, and other unqualified products were removed and rinsed again with tap water. Classification and grading into the plastic turnaround box. 2 Pre-cook, cool, dry. Pre-cooked water should be added appropriate amount of citric acid and salt, the temperature above 95 °C, precooked for 5 minutes, so that the temperature of corn kernels above 95 °C. Pre-cooking requires gentle turning to facilitate even heat. Pre-cooked corn cobs are quickly cooled with flowing water to 50-60°C, and are ready for use. 3 Bagging, vacuuming and sealing. Prior to bagging, apply a clean and hygienic gauze to dry the water droplets, then place the corn cob in the cooking bag and seal it in a vacuum sealer. 4 Sterilization, cooling, constant temperature culture. The flexible packaging corn is stacked in the sterilizer to ensure that the steam can fully create a free flow surface, the air is discharged unimpeded, and the heat energy is uniformly transferred. Before the start of sterilization, a large amount of steam must be quickly introduced to fill the interior of the sterilizer with high-pressure steam and create a rapid flow to facilitate the rapid elimination of air. The process of heating and boosting should be as quick as possible. 110 °C began to pressurize, so that the sterilization pressure was maintained at 1.4-1.8kg/cm2, temperature 121 °C, time 30 minutes, and finally the sterilized soft packaged corn cocoon clean and stored in a 25 °C constant temperature warehouse for 7 days, followed by Package inspection qualified products. 5 inspection, packing, inspection, packaging, storage. The air leakage and inferior quality were removed, qualified products were packed in grades and sealed with tape.