The invention discloses a portable winding device for an optical thin film. The winding device comprises a base, and a lifting mechanism is arranged on the base, a fixed frame is arranged on the upperend surface of the base, and a detachable winch is installed on the fixed frame; and the lifting mechanism is a multi-stage lifting rod, an auxiliary roller is arranged at the top part of the liftingmechanism, and the optical thin film is collected into the detachable winch through the auxiliary roller. At present in China, the optical thin film is collected by directly connecting the winch andthe tiled optical thin film, is directly collected through rotation of a winding drum, and is formed into a roll shape, when the optical thin film is collected, the optical thin film can be wrinkled,so that the arrangement of the optical thin film is not facilitated. According to the portable winding device, the lifting mechanism is matched with the auxiliary winding drum, the optical thin film is lifted firstly, then gravity and a pulling force generated by the winding drum in the detachable winch are utilized, so that wrinkles of the optical thin film is treated to be flat, and therefore the optical thin film can be reused.