The layout of electric apparatus, electric connections and fittings design is the key factor to ensure safe electric clearance, effective control of corona and electric field intensity, reliable and safe operation in valve hall of HVDC converter station. In ±500 kV Baoji converter station, which is the first one completely utilizing domestically manufacturing equipment in China, the electric equipment selection and design features of valve hall are analyzed. On the basis of the above analysis, the design feature and characteristics of the fittings are introduced in detail according to the special requirements of electric connections in valve hall. Finally, the management experience and electric design of valve hall are summarized.