Method for preparing banana chips vacuum puffed through microwave

A process for preparing the microwave puffed banana slices includes such steps as providing the banana whose mature level is 90%, peeling, slicing, loading the banana slices in a tray, microwave puffing in a vacuum microwave drier, and vacuum packing or filling N2 in the sealed packing bag. Its advantages are less loss in color, smell and taste, and high crispness.