The utility model discloses a double-insurance falling protector. The falling protector comprises a falling protector main body and a steel belt, a spring is arranged in the falling protector body, aconnecting rope is arranged at one end of the falling protector body, a sleeve is arranged at the other end of the falling protector body, a rubber strip is arranged on the outer wall of one end of the sleeve, the sleeve is connected with the falling protector body through glue, the inner wall of the sleeve is arc, and a steel wire rope is inserted into the sleeve in a penetrating mode and locatedin the falling protector body. A sleeve of the double-insurance falling protector is located at the rapid stretching position of the outer wall of a steel wire rope. a plurality of groups of rubber strips are arranged at one end of the sleeve; when the steel wire rope is in use, work at any angle, and the rubber strip of the sleeve can prevent pollution of dust and garbage outside the sleeve fromentering, so that the situation that subsequent work is not facilitated due to the fact that an inlet between the falling protector main body and the steel wire rope is damaged is avoided, and the problem that the dust and the garbage enter the inlet easily when the steel wire rope at one end of the falling protector is stretched in the using process of the double-insurance falling protector is solved.