Rope breaking protective device

The invention provides a rope breaking protective device. The rope breaking protective device comprises a protective connecting rod, a first connecting device and a second connecting device. The first connecting device is arranged at the first end of the protective connecting rod and used for connecting the tail end of a steel wire rope. The second connecting device is arranged at the second end of the protective connecting rod and used for connecting a large formwork. The protective connecting rod is used for breaking when loads of the large formwork connected with the second connecting device exceed the maximum weight borne by the protective connecting rod. The maximum weight borne by the protective connecting rod is smaller than the maximum weight borne by the first connecting device, the second connecting device and the steel wire rope. The rope breaking protective device provided by the invention can improve the safety of mine operations.