Fixing device of lifting oil cylinder and dumper

The utility model discloses a fixing device of a lifting oil cylinder and a dumper. The fixing device of the lifting oil cylinder comprises a dumper frame, an installation seat fixedly arranged on the dumper frame and a fixing ring, wherein at least two threaded holes are formed in the installation seat and are perpendicular to the upper surface of the installation seat, the two ends of the fixing ring are fixedly connected into the corresponding threaded holes through bolts, the middle portion of the fixing ring protrudes in the direction far away from the dump frame, and a space which the lifting oil cylinder can pass through is formed between the fixing ring and the dumper frame. The fixing device of the lifting oil cylinder solves the problems that it is inconvenient to bind the lifting oil cylinder with a rope in the prior art and has the advantages of being convenient to install, high in reliability and the like.