Temperature control valve and gearbox temperature control system

The invention discloses a temperature control valve. The temperature control valve comprises a valve body and a thermal actuator installed in the valve body; the valve body is internally provided with a first cavity and a second cavity; the first cavity communicates with the exterior through at least three channels, namely, the fourth channel, the fifth channel and the sixth channel; the second cavity communicates with the exterior through at least three channels, namely, the first channel, the second channel and the third channel; the thermal actuator is arranged in the first cavity; thermo-sensitive matter of the thermal actuator is expanded or contracted according to the temperature of oil in the temperature control valve, and the cooling oil can be adjusted and controlled to enter different runners to flow at the low temperature or the high temperature, so that the situation that heating or cooling of the cooling oil is controlled is achieved; and thus, the temperature of the cooling oil is not too high or too low, the lubricating performance of the cooling oil is better, and gearbox working is protected.