The utility model provides a valve tower for a high-voltage thyristor converter valve. The valve tower comprises a double-valve, a straight bus-bar, an inclined bus-bar, shielding covers and a valve lightning arrester. The double-valve comprises two single valves which are connected in series via the inclined bus-bar and the straight bus-bar. Each single valve is composed of five valve modules. The layer of the double-valve is an odd number of at least three or more than three. The shielding covers are arranged at the top part and the bottom part of the double-valve respectively. The valve tower comprises two adapter buses which are supported by the shielding covers. With application of the structure, the high-voltage and low-voltage outlet wires of the valve tower are connected with the lightning arrester via the adapter buses, the high-voltage and low-voltage outlet wires are converted to the same side of an AC inlet wire, and a problem of complexity in wiring of the valve lightning arrester is ingeniously solved. Meanwhile, operation is simple and convenient, and the bus-bars of the valve tower have a spiral rising structure through arrangement so that wiring is clear and installation is convenient.