The invention discloses online detection maintenance integrated process technology for cleaning a traction steel wire rope and belongs to a cleaning detection maintenance integrated process. The online detection maintenance integrated process technology for cleaning the traction steel wire rope comprises the following process steps: lifting the steel wire rope to be cleaned, detected on line and maintained to a pay-off unit by a lifting appliance and then entering the cleaning process; carrying out rough brushing, warm water soaking, water jet cleaning and compressed air dehumidification; after basis drying, entering the next detection process, i.e. tensile force detection and broken wire detection; enabling the steel wire rope processed in the detection process to enter the maintenance process, i.e. hot oil immersion and oil drainage; enabling the steel wire rope subjected to oil drainage to enter a take-up unit, lifting up the steel wire rope by the lifting appliance and moving the steel wire rope apart from the integrated maintenance line. The cleaning online detection maintenance integrated process technology has the characteristics that dirt on the surface of the steel wire rope and inside the steel wire rope can be cleaned and residual water in the water jet cleaning process of the steel wire rope is effectively removed; a test piece is clamped without damage and online tensile force test is carried out randomly; the steel wire rope is subjected to fine oil immersion maintenance and residual grease on the surface of the steel wire rope is removed.