Defroster and air-conditioner with same

The utility model discloses a defroster and an air-conditioner with the same. A path of first defrosting pipeline is additionally arranged on a conveying pipeline for connecting indoor and outdoor heat exchangers, and one end of the first defrosting pipeline is communicated with the outdoor heat exchanger; the other end of the first defrosting pipeline is communicated with a conveying pipeline arranged at the front end of a heating flow direction throttle element, and a first controlled valve is arranged on the first defrosting pipeline. A part of refrigerant at an outlet of the indoor heat exchanger is used for defrosting without halting, the continuous heating can be realized, energy cannot be wasted, and the defrosting can be realized by only a small part of heat; a high-temperature and high-pressure refrigerant at the outlet of the compressor still passes through the indoor heat exchanger firstly to ensure that the indoor heating temperature does not drop, so that the heating amount of the air-conditioner