The invention relates to the technical field of office equipment, in particular to pretreatment equipment for rainwater on shoe soles in rainy weather in an office building. The technical problems aresolved that in the rainy weather, much water exists on the floor of the office building, people are prone to slipping, and the emotions of workers in office work are affected. The pretreatment equipment for the rainwater on the shoe soles in the rainy weather in the office building comprises a supporting box, a water-filtering supporting plate is welded inside the supporting box, a pressure-driving air suction device is arranged at the top of the water-filtering supporting plate, a foot treading downward-pressing device is arranged at the top of the pressure-driving air suction device, and awater-air stepped flowing device is arranged at the bottom of the food treading downward-pressing device. The pretreatment equipment can pretreat the rainwater on the shoe soles in the rainy weather,a carpet can absorb faint moisture on the shoe soles, and dryness of the floor is guaranteed; due to the fact that the rainwater on the shoe soles is not much, the carpet can be used for a longer timeand at higher frequency, and it is avoided that people fall off, and the emotions are affected.