The utility model discloses a high gas -producing well annular space casing pressure compensation arrangement of high temperature high pressure, including automatic filling pump, high pressure line, liquid storage pot and automatic relief valve, when gas well annular space casing pressure is less than the setting value, the gas well annular space is sent the fluid passage high pressure line in the liquid storage pot into to automatic filling pump for the compensation of gas well annular space casing pressure, when gas well annular space casing pressure is higher than the setting value, automatic relief valve is used for for gas well annular space cover pressure release. Being connected of oil pipe cross flutter valve that the one end and the gas well annular space of high pressure line were sheathe in, the other end is connected with the liquid storage pot, automatic relief valve is established on the high pressure line, when gas well annular space casing pressure is higher than the setting value, automatic relief valve is opened, and liquid in the gas well annular space cover flows back in the liquid storage pot. Owing to adopt foretell gas well annular space casing pressure compensation arrangement, manage oil gas well production process zhonghuan pneumatics power, save the manpower, realized the automatic control of annular space stress management.