The invention discloses a method for quickly preparing non-puffed low-sugar fruit jelly crispy chips and belongs to the technical field of fruit and vegetable food processing. Fruit chips are mainly prepared by the following steps: fruit washing, peeling, pit removal, slicing, pretreatment, freezing, freezing and drying, microwave vacuum drying, hot air drying and packaging. The method adopts freezing and drying in a sublimation drying stage of the fruit chips and controls the water content of products to be 37 percent. The method adopts microwave vacuum drying till the water content of the fruit chips is 10 percent in a resolving drying stage, and then adopts hot air dying to make the terminal water content of the fruit chips less than 5 percent. Low-sugar fruits are apples, pears or peaches which have a sugar degree of between 8 and 10. As post treatment of the freezing and drying, microwave vacuum drying and hot air drying greatly reduce energy consumption. Meanwhile, compared withlyophilized products, products dried by the method have no obvious change in quality and appearance.