The utility model discloses a steel wire lubricating arrangement for well testing truck, including installing on well testing truck coiling ware base support a lubricated section of thick bamboo that sets up with base support synchronous motion's mount, the level on mount upper portion of installing, the fuel feeding box of giving lubricated section of thick bamboo fuel feeding, the lubricated section of thick bamboo body of the tube -shape that a lubricated section of thick bamboo set up including the level is equipped with the oil absorption cotton in the section of thick bamboo, the both ends of barrel have a sealed cap of pressing, and sealed the pressure is provided with the perforating hole that passes the steel wire on the cap, and the oilhole is brought into to a section of thick bamboo wall, and the fuel feeding box passes through the fuel feeding hose connection to the inlet port. The utility model discloses reduce the intensity of labour of site operation, the machinery that reduces in the construction hurts the risk, the steel wire surface lubrication is washd evenly, avoids the steel wire corrosion, make operation environment cleaner, reduce the greasy dirt, reduce the down frictional force of instrument, improve sealed effect, avoid leaking because of the oil gas water that sealed packing wearing and tearing seriously caused.