The invention discloses a crop processing method, comprising the steps of: (A) providing a to-be-processed crop (B) processing the crop in the step (A) by at least one gradient temperature rise in a low-temperature section at a temperature ranged between the room temperature and 50 DEG C so as to perform an enzymatic reaction of the crop (C) processing at least one gradient temperature rise to the crop in the step (B) in a middle-temperature section of a temperature ranged between 50 DEG C and 100 DEG C so as to dewater the crop and to perform a general chemical reaction and a first stage Maillard reaction and (D) processing at least one gradient temperature rise to the crop in the step (C) in a high-temperature section of a temperature ranged between 100 DEG C and 180 DEG C so as to dewater the crop and to perform a general chemical reaction and a second stage Maillard reaction.
