The utility model discloses a heating device for be used for production tree, including the production tree, be equipped with tee bend or cross on the production tree, still include water recovery case, heating furnace, water pump and insulation can, the insulation can setting on the production tree, the insulation can is connected with the water recovery case, the water recovery case passes through the water pump to be connected with the heating furnace, the heating furnace is connected with the insulation can, medium water under the effect of water pump, circulation and to production tree heating between insulation can, water recovery case and heating furnace respectively, the tree ice that prevents to refuel is stifled, has improved the work efficiency in oil field.