The invention discloses a fruit-leaf separator capable of being movably deployed and a using method thereof. The fruit-leaf separator is divided into two parts, namely a climbing conveyor part and a fruit leaf separator part, wherein the two parts are loaded on a chassis trailer part, and can be movably deployed to an orchard site and combined together to work. A user inputs fruits and leaves mixtures in a collecting basket into a low-position conveyor hopper of the climbing conveyor, and then the fruits and leaves mixtures are lifted to a high position through a climbing conveying belt and are poured into the fruit leaf separator part; and after the fruits and leaves mixtures fall off from the high position, the leaves are blown away through two strong fans which are arranged up and down,and the fruits are collected into a basket. According to the fruit-leaf separator, the fruit-leaf separating effect can be improved, and the labor intensity is relieved; and meanwhile, leaves are left in the orchard, thus improving the fertility of orchard soil, and avoiding the problem of waste leaves treatment in centralized operation places.