Air conditioner outdoor unit and air conditioner

The utility model discloses an air conditioner outdoor unit and an air conditioner. The air conditioner outdoor unit comprises a heat exchanger assembly. The water vapor compressor is located at the front part of one end of the heat exchanger assembly, and a second port of the water vapor compressor communicates with a first port of the heat exchanger assembly; the heat exchange assembly is located below the water vapor compressor, a second port of the heat exchange assembly communicates with a first port of the heat exchange assembly through the throttling component, and the second port of the heat exchange assembly communicates with a first port of the water vapor compressor; and the cooling fan is arranged corresponding to the heat exchanger assembly. The air conditioner outdoor unit adopts water which is more friendly to ecological environment and human health as a refrigerant, the working condition of the refrigerant is a negative pressure working condition, the water vapor compressor is located on the front portion of one end of the heat exchanger assembly, the heat exchange assembly is located below the water vapor compressor, and the air conditioner outdoor unit is compact in structure, small in size and convenient to install.