The invention discloses an electric cable terminal hoop machining device which comprises an iron base. A sliding groove is formed in the iron base. Sliding blocks are arranged on the sliding groove. A gap is reserved when the two sliding blocks are assembled. The sliding groove is of a hollowing structure. The electric cable terminal hoop machining device is firm, durable, simple in structure and flexible in operation, manufacturing time of a hoop in a terminal can be shortened, manufacturing efficiency can be improved, personal and equipment safety is protected, first-aid repairing time is shortened, and first-aid repairing efficiency is improved.