The invention discloses a processing method and a processing device for a quick-refreshing convenient food. The processing method includes steps of: placing convenient food raw materials into a positive-pressure container for carrying out an aging process; quickly placing the aged convenient food raw materials into a microwave oven for carrying out a microwave heating process; quickly placing the heated convenient food raw materials into a vacuum quick drying container to carry out a negative-pressure dehydrating and drying process when the temperature of the convenient food raw materials reaches 200-250 DEG C; and carrying out a packaging operation to obtain a finished product of the quick-refreshing convenient food. The processing device of the invention comprises of the positive-pressure container, the microwave oven and the vacuum quick drying container. The invention is simple in processing technology and is low in equipment investment and processing cost. Through the processing method, nutrient components in the convenient food raw materials are less damaged during processing, and the quick-refreshing convenient food is good in mouthfeel, is long in shelf life, is convenient to eat and can be refreshed during eating.