Freeze-dried method for American cockroach

The invention relates to a freeze-dried method for American cockroach. The method comprises the following steps: performing freeze-drying until sublimation is ended, taking out the American cockroach, sealing, packaging, thereby preparing the American cockroach. The energy consumption is low, the prepared American cockroach is difficult to break and high in activity, and the activity of the product is higher than that of freeze-dried American cockroach scalded to die in boiling water.