The present invention provides a flexible device carrier for a flexible display panel and a method for attaching a membrane on the flexible device. The flexible device carrier comprises: a bottom plate; a position-limiting plate provided opposite to the bottom plate and detachably mounted on the bottom plate through a position-limiting mechanism, wherein a slotted hole is provided on the position-limiting plate to match with one side of the bottom plate facing the position-limiting plate, so as to form a positioning groove for the flexible device. By using the flexible device carrier, the membrane can be tightly attached on the side of the flexible device away from the bottom plate of the flexible device carrier, reducing probability of defects such as occurrence of bubbles between the membrane and the flexible device, improving quality of attaching the membrane on the flexible device and improving product yield of the flexible display panel.