Crane anchoring device and working method thereof

The invention discloses a crane anchoring device and a working method thereof, relates to the technical field of windproof devices, solves the problem that an insertion plate of an existing windproof anchoring device is easily influenced by deviation and cannot be inserted into a wharf anchoring pit, facilitates insertion of an anchoring plate, and improves the safety of a wharf. According to the specific scheme, the device comprises an anchoring frame used for being fixedly installed on a crane body, an anchoring plate supporting frame movably arranged on the anchoring frame and an anchoring plate inserted into the anchoring plate supporting frame, a transversely-arranged first electric push rod is fixedly arranged on the anchoring frame, and a telescopic rod of the first electric push rod is connected with the anchoring plate supporting frame; a vertically-arranged second electric push rod is fixedly arranged on the anchoring plate supporting frame, and a telescopic rod of the second electric push rod is co