Objective: It solved the problem of low accuracy and large random error when cutting fresh corn, which is easy to damage the grain. Methods: A new process of sweet and waxy corn processing production line was designed, the production line used machine vision technology to judge the attitude of corn, completed the adjustment of corn attitude through reversing equipment, designed adaptive positioning structure to cut the head and tail of corn, and then carried out layer retention processing according to the difference characteristics of ear bract adhesion after cutting results, packed after camera quality screening, and used prototype to carry out processing tests. Results: The processing efficiency of the production line was up to 1 500 spikes/h, the pass rate of retention layer was 90.2%, and the grain breakage rate was 1.81%. Conclusion: The fresh corn processing production line realizes the automation of corn feeding, sorting, cutting, peeling and other processes, realizes the reasonable retention of bracts and leaves, and protects corn grains more than traditional equipment.