Abstract: The mechanical operation of industrial steel-making plant has the characteristics of high strength, obvious vibration and high risk, which has a certain influence on the structural safety of the plant and the working comfort of the staff in the park. If the vibration of the plant does not meet the requirements, it is necessary to carry out modification or take vibration isolation measures to improve the safety and comfort of the plant. Taking the slag treatment workshop of Zhanjiang Baogang plant in Guangdong as the research object, field vibration test was carried out, the impact of the drop hammer treatment process on the vibration of the structure and the surrounding environment was analyzed, the vibration reduction measures were put forward, and the finite element model was established to analyze the vibration reduction effect. The results showed that the ground vibration response caused by falling hammers was large. In some areas, the ground vibration acceleration and the weight acceleration level of the vibration meter exceed the allowable limit value of the specification, which had a significant impact on comfort; the isolation effect of the building structure on vibration was not obvious, and the surrounding environment vibration was large; the vibration reduction effect was obvious by adding soft soil layer; when the thickness of soft soil was 0.3 m, the vibration amplitude decreased to 10% of the original value.