Thermostatic cattle drinking trough suitable for cattle, sheep, donkey, horse, camel and other livestock use. The heating drinking trough can prevent freezing and heat preservation in winter, prevent heat and cool down in summer, and save water. It can reduce the number of animals drinking cold water and getting sick due to water infection, improve milkproduction and raw milk quality of cows. Cattle drinking trough: width 50 cm, height 70 cm, depth 30 cm, length have: 2 meters, 3 meters, 4 meters, in addition, can be customized according to customer needs. Specially used 220V to 36V voltage. The power of 2 meters is 400W, and the power of 3 and 4 meters is 800W, which is suitable for use in cold areas. Automatic filling function is controlled by float ball valve, relying on water pressure to fill water, if there is no water pressure can not automatically fill water. Through automatic water control water level, automatic heating, the temperature can be manually controlled and adjusted 0-50 degrees, can set the upper limit temperature and lower limit temperature, water temperature reaches the upper limit temperature automatically stop heating, below the lower limit temperature automatic heating, with insulation layer, anti-freezing, leakage protection, input 220v output 36v voltage. In addition, it is equipped with AC contactor, leakage air switch and temperature sensing electronic components, which are controlled by the distribution box. The thermal insulation tank body, appropriate tank volume and large flow inlet valve can not only meet the drinking speed of cattle, but also reduce heat loss and energy consumption. The water trough is heated to 20 degrees within 1 hour after the first use. Due to the heat preservation function of the water trough, the constant temperature of the water inside is always about 20 degrees. (For the first time, continuous heating for an hour, consumes electricity: about 0.5 degrees of electricity for 2 meters, and about 1 degree of electricity for 3 meters and 4 meters, and the power consumption of the trough will be reduced under constant temperature.) Cows keep drinking water, the temperature will not drop, below the set temperature will automatically heat up. Below the set water level will automatically fill.