The invention belongs to the technical field of food processing, and in particular, relates to a support box auxiliary loading method without needing manual participation. The support box auxiliary loading method comprises the following steps: firstly, support boxes are horizontally pushed from the head end to the tail end of a frame by a pushing device; and after the support boxes reach the tailend, a rectifying device puts down the support boxes on a main conveying belt. A support box auxiliary loading mechanism comprises the pushing device for horizontally pushing the support boxes, and arectifying device for limiting and rectifying the falling support boxes; and when the support boxes are pushed to guarantee to fall on the main conveying belt, the support boxes are not deflected, sothat subsequent procedures are not influenced, and the support boxes can be arranged on the main conveying belt to enter next stations.