The invention belongs to the technical field of water drinking systems for animals, and discloses a water tank device capable of providing warm water for animals in winter, and a control method. The water tank device capable of providing the warm water for the animals in winter comprises a solar energy power supply module, a water temperature detection module, a water quality detection module, a water flow rate detection module, an infrared detection module, an alarming module, a central control module, a wireless transmission module, a mobile terminal, an image collection module, a heating, disinfecting and filtering module, a water tank height regulation module, an electric leakage detection protection module and a water tank movement module. According to the body height of an animal, the height of a water drinking tank can be regulated so as to be convenient for the animal to drink water. According to the water tank device, whether animals are in the presence around the water drinking tank or not can be automatically detected, automatic water discharging can be carried out, warm water in the water tank can be effectively guaranteed to keep a constant water temperature in a continuous flowing process, and the animal is protected from adverse reaction during water drinking. Meanwhile, the mobile terminal is connected with the wireless transmission module to realize remote control.