Prefabricated steel workshop has the advantages of high strength, light weight, short construction period, and green environmental protection. According to different design requirements and usage scenarios, steel structures can be subdivided into different types. Among them, portal steel structure, frame steel structure, grid structure and cable membrane structure are widely used in industrial, commercial, civil and public buildings. Portal steel structure is the representative of light steel structure. The steel structure workshop we produce is mainly composed of steel columns and steel beams connected by rigid nodes to form a portal frame system. The roof and wall of prefabricated steel workshop are also often used in combination with lightweight corrugated steel plates or composite plates. Therefore, prefab metal shop buildings have simple structures, light weight, and high degree of industrialization. They are widely used in single-story industrial plants, warehouses, logistics centers, small exhibition halls and supermarkets. Our prefabricated steel structure frame workshop uses a reasonable amount of steel, has a high material utilization rate, and has a low overall cost, which can reduce the project investment cost. In addition, the construction period of prefabricated steel workshop is short and can be put into use quickly.