For a steel structure workshop, when the main body of the superstructure is completed, it is found that the concrete strength of the reinforced concrete independent foundation under the steel column is less than C10, and the scheme of steel structure reinforcement foundation is designed and calculated, so that the planting capacity of the foundation meets the requirements, and the construction method and sequence are studied and discussed. The reinforced concrete independent foundation not only meets the strength requirements, but also has fast construction speed and simple method, and the original concrete disturbance is minimal, which achieves the expected purpose. The design and construction scheme can be used as a reference for similar engineering reinforcement treatment.