The utility model relates to a 110kV grade thyristor valve body, the switching element of thyristor for being equipped with semiconductor component, the long square frame of valve body for being equipped with thyristor valve phantom piece and heat abstractor in it, thyristor valve phantom piece includes the edge absorption capacitors that the horizontal direction of frame set up, water -cooled resistance and with thyristor that heat abstractor links to each other with trigger the board, thyristor valve phantom piece is fixed and is being followed on the vertical direction parallel arrangement's of frame the connecting piece. The utility model provides a pair of 110kV grade thyristor valve body can satisfy the static reactive compensation equipment of extra -high voltage to voltage and current capacity's requirement, has again that insulating properties is good, a simple structure, rationally distributed and advantage that the radiating effect is good.