The invention provides an ODF (Optical Distribution Frame) uncapping device and an application method thereof. The ODF uncapping device comprises a first shearing body, wherein the middle part of thefirst shearing body is articulated with a second shearing body, the first shearing body includes a first pliers hand located at the front end, the rear end of the first pliers hand is fixedly connected with a first handle, the second shearing body includes a second pliers hand which is mutually matched with the first pliers hand to clamp and pull an ODF cap, and the rear end of the second pliers hand is fixedly connected with a second handle. The ODF uncapping device is reasonable in design, simple in structure, light, practical, comfortable in hand feeling, durable and practicable.