Steel ropes are important elements of many potentially dangerous technical objects. The object integrity and its safety use depend on the rope condition. The ropes subjected to wear which degree is standardized by the Rostechnadzor Safety Rules. Magnetic inspection is used for the rope technical diagnostics. The use of rope tester INTROS in Russia and other countries for many years shows its efficiency for safety providing of such objects like minehoists, cranes, aerial ropeways. At the same time, further perfection of normative and methodical basis for the widening of the rope and the steel rubber conveyor belt magnetic defectoscopie.