Abstract: An energy-saving heating wearable apparatus mainly includes a control unit, a heating unit, a temperature sensing unit, and a humidity sensing unit. The control unit controls the heating unit to continuously heat when an ambient temperature or a biological body temperature detected by the temperature sensing unit is less than a temperature setting value. The control unit controls the heating unit to stop heating when the ambient temperature or the biological body temperature is not less than the temperature setting value. The control unit controls the heating unit to stop heating when an ambient humidity or a biological body humidity detected by the humidity sensing unit is less than a humidity setting value. The control unit controls the heating unit to continuously heat when the ambient humidity or the biological body humidity is not less than the humidity setting value.