The invention discloses a distillation device for extracting tea tree essential oil and relates to the field of extracting equipment of tea tree essential oil. The distillation device comprises a double-layer heat-insulating tank; a feeding pipeline and an oil gas exhausting pipe are arranged at the top of the double-layer heat-insulating tank; a discharging port is formed in the bottom of the double-layer heat-insulating tank; a plurality of steam feeding pipes which are communicated with the interior of the double-layer heat-insulating tank are uniformly arranged on a side wall of the double-layer heat-insulating tank; a feeding lifting mechanism is connected with the feeding pipeline; a collecting tank is arranged under the discharging port; and a conveying mechanism for driving the collecting tank to move is arranged under the collecting tank. The distillation device for extracting tea tree essential oil has the advantages of simple structure, high working efficiency, low labor intensity of workers and cost saving.